diff --git a/src/ontology/imports/pato_import.owl b/src/ontology/imports/pato_import.owl
index 64359663..56a973aa 100644
--- a/src/ontology/imports/pato_import.owl
+++ b/src/ontology/imports/pato_import.owl
@@ -7,7 +7,7 @@ Prefix(rdfs:=<http://www.w3.org/2000/01/rdf-schema#>)
 
 
 Ontology(<http://purl.obolibrary.org/obo/ro/imports/pato_import.owl>
-<http://purl.obolibrary.org/obo/ro/releases/2023-08-16/imports/pato_import.owl>
+<http://purl.obolibrary.org/obo/ro/releases/2024-02-27/imports/pato_import.owl>
 Annotation(<http://purl.obolibrary.org/obo/IAO_0000700> <http://purl.obolibrary.org/obo/PATO_0000001>)
 Annotation(<http://purl.org/dc/elements/1.1/description> "An ontology of phenotypic qualities (properties, attributes or characteristics).")
 Annotation(<http://purl.org/dc/elements/1.1/source> <http://purl.obolibrary.org/obo/pato/releases/2023-05-18/pato.owl>)
@@ -16,12 +16,13 @@ Annotation(<http://purl.org/dc/terms/license> <https://creativecommons.org/licen
 Annotation(<http://www.geneontology.org/formats/oboInOwl#default-namespace> "quality")
 Annotation(<http://www.geneontology.org/formats/oboInOwl#hasOBOFormatVersion> "1.2")
 Annotation(owl:versionInfo "2023-05-18")
-Annotation(owl:versionInfo "2023-08-16")
+Annotation(owl:versionInfo "2024-02-27")
 
 Declaration(Class(<http://purl.obolibrary.org/obo/BFO_0000020>))
 Declaration(Class(<http://purl.obolibrary.org/obo/PATO_0000001>))
 Declaration(Class(<http://purl.obolibrary.org/obo/PATO_0000402>))
 Declaration(Class(<http://purl.obolibrary.org/obo/PATO_0001199>))
+Declaration(Class(<http://purl.obolibrary.org/obo/PATO_0001470>))
 Declaration(Class(<http://purl.obolibrary.org/obo/PATO_0002124>))
 Declaration(AnnotationProperty(<http://purl.obolibrary.org/obo/IAO_0000115>))
 Declaration(AnnotationProperty(<http://purl.obolibrary.org/obo/IAO_0000700>))
@@ -38,6 +39,7 @@ Declaration(AnnotationProperty(<http://www.geneontology.org/formats/oboInOwl#has
 Declaration(AnnotationProperty(<http://www.geneontology.org/formats/oboInOwl#hasExactSynonym>))
 Declaration(AnnotationProperty(<http://www.geneontology.org/formats/oboInOwl#hasNarrowSynonym>))
 Declaration(AnnotationProperty(<http://www.geneontology.org/formats/oboInOwl#hasOBOFormatVersion>))
+Declaration(AnnotationProperty(<http://www.geneontology.org/formats/oboInOwl#hasRelatedSynonym>))
 Declaration(AnnotationProperty(<http://www.geneontology.org/formats/oboInOwl#id>))
 Declaration(AnnotationProperty(<http://www.geneontology.org/formats/oboInOwl#inSubset>))
 
@@ -70,6 +72,19 @@ AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#id> <http://pu
 AnnotationAssertion(rdfs:label <http://purl.obolibrary.org/obo/PATO_0001199> "linear")
 SubClassOf(<http://purl.obolibrary.org/obo/PATO_0001199> <http://purl.obolibrary.org/obo/PATO_0000001>)
 
+# Class: <http://purl.obolibrary.org/obo/PATO_0001470> (proportionality to)
+
+AnnotationAssertion(Annotation(<http://www.geneontology.org/formats/oboInOwl#hasDbXref> "PATOC:nw") <http://purl.obolibrary.org/obo/IAO_0000115> <http://purl.obolibrary.org/obo/PATO_0001470> "A quality inhering in a bearer by virtue of the bearer's magnitude in respect to a related entity.")
+AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#hasExactSynonym> <http://purl.obolibrary.org/obo/PATO_0001470> "proportion")
+AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#hasExactSynonym> <http://purl.obolibrary.org/obo/PATO_0001470> "proportionality")
+AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#hasExactSynonym> <http://purl.obolibrary.org/obo/PATO_0001470> "quotient")
+AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#hasExactSynonym> <http://purl.obolibrary.org/obo/PATO_0001470> "ratio")
+AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#hasRelatedSynonym> <http://purl.obolibrary.org/obo/PATO_0001470> "rate")
+AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#id> <http://purl.obolibrary.org/obo/PATO_0001470> "PATO:0001470")
+AnnotationAssertion(rdfs:comment <http://purl.obolibrary.org/obo/PATO_0001470> "Examples: height to weight; brain size to body size. These could all be children of proportionality. Proportions can be measured as ratios. Some measures may be dimensionless. Not all ratios measure proportionality, eg m/s measures velocity which is not a proportion in the sense defined above, it is a quality in its own right.")
+AnnotationAssertion(rdfs:label <http://purl.obolibrary.org/obo/PATO_0001470> "proportionality to")
+SubClassOf(<http://purl.obolibrary.org/obo/PATO_0001470> <http://purl.obolibrary.org/obo/PATO_0000001>)
+
 # Class: <http://purl.obolibrary.org/obo/PATO_0002124> (laminar)
 
 AnnotationAssertion(Annotation(<http://www.geneontology.org/formats/oboInOwl#hasDbXref> "PATOC:GVG") <http://purl.obolibrary.org/obo/IAO_0000115> <http://purl.obolibrary.org/obo/PATO_0002124> "A quality inhering in a bearer by virtue of the bearer's processing the form of a thin plate sheet or layer.")
diff --git a/src/ontology/imports/pato_terms.txt b/src/ontology/imports/pato_terms.txt
index ce1ec8e4..905465c0 100644
--- a/src/ontology/imports/pato_terms.txt
+++ b/src/ontology/imports/pato_terms.txt
@@ -1,4 +1,5 @@
 PATO:0002124
 PATO:0001199
 PATO:0000402
-PATO:0000001
\ No newline at end of file
+PATO:0000001
+PATO:0001470
diff --git a/src/ontology/ro-edit.owl b/src/ontology/ro-edit.owl
index 6018f0d5..3514946b 100644
--- a/src/ontology/ro-edit.owl
+++ b/src/ontology/ro-edit.owl
@@ -603,6 +603,8 @@ Declaration(ObjectProperty(obo:RO_0019501))
 Declaration(ObjectProperty(obo:RO_0020101))
 Declaration(ObjectProperty(obo:RO_0020102))
 Declaration(ObjectProperty(obo:RO_0020103))
+Declaration(ObjectProperty(obo:RO_0020202))
+Declaration(ObjectProperty(obo:RO_0020203))
 Declaration(ObjectProperty(obo:RO_0040035))
 Declaration(ObjectProperty(obo:RO_0040036))
 Declaration(ObjectProperty(obo:RO_HOM0000000))
@@ -6834,6 +6836,26 @@ SubObjectPropertyOf(obo:RO_0020103 obo:RO_0002179)
 ObjectPropertyDomain(obo:RO_0020103 obo:UBERON_0001982)
 ObjectPropertyRange(obo:RO_0020103 obo:UBERON_0000061)
 
+# Object Property: obo:RO_0020202 (has numerator)
+
+AnnotationAssertion(Annotation(terms:contributor "https://orcid.org/0000-0002-8280-0487") obo:IAO_0000115 obo:RO_0020202 "A relationship between a ratio or proportion and its dividend.")
+AnnotationAssertion(oboInOwl:created_by obo:RO_0020202 <https://orcid.org/0000-0001-8314-2140>)
+AnnotationAssertion(oboInOwl:hasExactSynonym obo:RO_0020202 "has dividend")
+AnnotationAssertion(rdfs:label obo:RO_0020202 "has numerator")
+SubObjectPropertyOf(obo:RO_0020202 obo:BFO_0000051)
+ObjectPropertyDomain(obo:RO_0020202 obo:PATO_0001470)
+ObjectPropertyRange(obo:RO_0020202 obo:PATO_0000001)
+
+# Object Property: obo:RO_0020203 (has denominator)
+
+AnnotationAssertion(Annotation(terms:contributor "https://orcid.org/0000-0002-8280-0487") obo:IAO_0000115 obo:RO_0020203 "A relationship between a ratio or proportion and its divisor.")
+AnnotationAssertion(oboInOwl:created_by obo:RO_0020203 <https://orcid.org/0000-0001-8314-2140>)
+AnnotationAssertion(oboInOwl:hasExactSynonym obo:RO_0020203 "has divisor")
+AnnotationAssertion(rdfs:label obo:RO_0020203 "has denominator")
+SubObjectPropertyOf(obo:RO_0020203 obo:BFO_0000051)
+ObjectPropertyDomain(obo:RO_0020203 obo:PATO_0001470)
+ObjectPropertyRange(obo:RO_0020203 obo:PATO_0000001)
+
 # Object Property: obo:RO_0040035 (disease relationship)
 
 AnnotationAssertion(obo:IAO_0000115 obo:RO_0040035 "This relation groups  relations between diseases and any other kind of entity.")
diff --git a/src/ontology/ro-idranges.owl b/src/ontology/ro-idranges.owl
index bd4f0128..96ff7352 100644
--- a/src/ontology/ro-idranges.owl
+++ b/src/ontology/ro-idranges.owl
@@ -114,4 +114,8 @@ EquivalentTo: xsd:integer[> 17500 , <= 18000]
 
 Datatype: idrange:26
 Annotations: allocatedto: "Aleix Puig"
-EquivalentTo: xsd:integer[> 20100 , <= 20200]
\ No newline at end of file
+EquivalentTo: xsd:integer[> 20100 , <= 20200]
+
+Datatype: idrange:27
+Annotations: allocatedto: "Ray Stefancsik"
+EquivalentTo: xsd:integer[> 20201 , <= 20300]