sentence: The ghost costume lost the competition, and the goblin costume won. That's because the 
complete: goblin costume was made by an expert.

sentence: Adam showed up empty-handed to the housewarming party, while Joel brought a gift, because 
complete: Adam was rude.

sentence: Amy helped Megan put on a pair of ice skates because 
complete:
Megan was just an amateur figure skater.