This commit could solve the sep_dot ISSUE #28, with these two cases:

1.  sparql = "SELECT DISTINCT ?uri WHERE { res:Area_51 dbo:location ?uri . ?uri dbo:country res:United_States. }"
    encoded = "SELECT DISTINCT var_uri WHERE  brack_open  dbr_Area_51 dbo_location var_uri sep_dot var_uri dbo_country dbr_United_States sep_dot brack_close"

2.  sparql = "select ?x where { dbr_Bandon_A.F.C. dbo_ceo ?x }"
    encoded = "select var_x where  brack_open  dbr_Bandon_A.F.C. dbo_ceo var_x  brack_close"

generator_utils.py

@@ -91,9 +91,9 @@ def strip_brackets(s):
     ['(', ' attr_open '],
     [') ', ')', ' attr_close '],
     ['{', ' brack_open '],
+    ['. }', ' sep_dot brack_close '],
     ['}', ' brack_close '],
     [' . ', ' sep_dot '],
-    ['. ', ' sep_dot '],
     ['?', 'var_'],
     ['*', 'wildcard'],
     [' <= ', ' math_leq '],