Requirement is a synonym of Condition. Condition is related to Shock. 
Partner is a type of Act. Partner is a synonym of Associate. Associate is a synonym of Relate. Bind is a type of Relate. 
Requirement <--Synonym--> Condition <--RelatedTo--> Shock 
Act <--IsA-- Partner <--Synonym--> Associate <--Synonym--> Relate <--IsA-- Bind 