in_right_side_of
BSPO:0000121
X in_right_side_of Y <=> if Y is subdivided into left and right portions, X is part_of the right portion.
https://github.com/obophenotype/uberon/wiki/Modeling-paired-structures-Design-Pattern
in_right_side_of
in_right_side_of
uberon
in_lateral_side_of