Board is related to Chairman. Chairman is derived from Chair. Chair is the opposite of Stand. Stand is a synonym of Stance. 
Opportunity is related to Opening. Opening is a type of Introduction. Introduction is related to Interview. Interview is related to Screening. 
Board <--RelatedTo--> Chairman --DerivedFrom--> Chair <--Antonym--> Stand <--Synonym--> Stance 
Opportunity <--RelatedTo--> Opening --IsA--> Introduction <--RelatedTo--> Interview <--RelatedTo--> Screening 