Main is related to Very. Very is related to Must. Must is related to Personal. Personal is related to Portrait. 
Tire is etymologically related to Tear. Tire is the opposite of Active. Active is related to Look. 
Main <--RelatedTo--> Very <--RelatedTo--> Must <--RelatedTo--> Personal <--RelatedTo--> Portrait 
Tear <--EtymologicallyRelatedTo-- Tire <--Antonym--> Active <--RelatedTo--> Look 