Space is related to Very. Very is related to Kill. Kill is related to Sin. Sin is the opposite of Virtue. 
Competitor is derived from Compete. People wants (to) Compete. People is related to Grave. 
Space <--RelatedTo--> Very <--RelatedTo--> Kill <--RelatedTo--> Sin <--Antonym--> Virtue 
Competitor --DerivedFrom--> Compete <--Desires-- People <--RelatedTo--> Grave 