coerce_implied_mode.m:034: In clause for
coerce_implied_mode.m:034:   `coerce_implied_mode3(in(bound(orange)))':
coerce_implied_mode.m:034:   in coerce expression:
coerce_implied_mode.m:034:   warning: unification of `Y' and `V_4' cannot
coerce_implied_mode.m:034:   succeed.
coerce_implied_mode.m:034:   `Y' has instantiatedness `bound(orange)',
coerce_implied_mode.m:034:   `V_4' has instantiatedness `unique(lemon)'.