[Type] string [Notes] Some structural cues can be further broken down into smaller structural cues. This field is a ; delimited list of the cues that this cue can be broken down into. [Name] 
subgroups
i d
c h a r g e
d e l t a G
d e l t a G e r r
f o r m u l a
p r i o r i t y
s m a l l M o l e c u l e
s u b g r o u p s