Perform is a synonym of Accomplish. Accomplish is a synonym of Effect. Effect is related to Drop. 
Career is related to Long. Long is a synonym of Tall. Tall is similar to Difficult. Difficult is related to Heavy. 
Perform <--Synonym--> Accomplish <--Synonym--> Effect <--RelatedTo--> Drop 
Career <--RelatedTo--> Long <--Synonym--> Tall <--SimilarTo--> Difficult <--RelatedTo--> Heavy 