one thing you do when you Contemplate is Headache. one thing you do when you Contemplate is Think. Think is related to Opinion. Opinion is a synonym of Sentiment. 
Map is related to East. East is similar to Eastern. Eastern is related to Temple. Temple is related to Greek. 
Headache <--HasSubevent-- Contemplate --HasSubevent--> Think <--RelatedTo--> Opinion <--Synonym--> Sentiment 
Map <--RelatedTo--> East <--SimilarTo--> Eastern <--RelatedTo--> Temple <--RelatedTo--> Greek 