Computer can be used for Homework. Homework is related to Report. Report is related to Documentary. Documentary is the opposite of Fiction. 
Material is related to Smoke. Mood would make you want to Smoke. Mood is a synonym of Climate. 
Computer --UsedFor--> Homework <--RelatedTo--> Report <--RelatedTo--> Documentary <--Antonym--> Fiction 
Material <--RelatedTo--> Smoke <--CausesDesire-- Mood <--Synonym--> Climate 