Widow is related to Black. Black is similar to Angry. Angry is related to Mean. 
Physics is related to Energy. Person wants (to) Energy. Person does not want (to) Refugee. 
Widow <--RelatedTo--> Black <--SimilarTo--> Angry <--RelatedTo--> Mean 
Physics <--RelatedTo--> Energy <--Desires-- Person --NotDesires--> Refugee 