Machine is the opposite of Human. you are likely to find Lip in/at/on Human. Lip is a synonym of Cheek. 
Line is a type of Score. Line is a type of Reinforce. Reinforce is a synonym of Encourage. 
Machine <--Antonym--> Human <--AtLocation-- Lip <--Synonym--> Cheek 
Score <--IsA-- Line --IsA--> Reinforce <--Synonym--> Encourage 