The bulk update request #11201 is pending approval.

create alias nervous_grin (277) -> nervous_smile (4750)
create implication nervous_smile (4750) -> nervous (22825)
create implication nervous_sweat (3674) -> nervous (22825) # duplicate of implication #67502

Reason: A grin is a slight smile, so it may as well be a smile.

Also nervous sweat doesn't imply nervous yet. If you disagree provide at least one counterexample of nervous sweat or nervous smile where the character in the nervous sweat/with the nervous smile isn't nervous.