X in lateral side of Y <=> if X is in left side of Y or X is in right side of Y. X is often, but not always a paired structure

X in_lateral_side_of Y <=> if X is in_left_side_of Y or X is in_right_side_of Y. X is often, but not always a paired structure

uberon

in_lateral_side_of

https://github.com/obophenotype/uberon/wiki/Modeling-paired-structures-Design-Pattern

in_lateral_side_of