Web is related to Computer. Computer is related to Worker. Missionary is a type of Worker. 
Ball is a type of Pitch. Pitch is a synonym of Gear. Transmission is a type of Gear. 
Web <--RelatedTo--> Computer <--RelatedTo--> Worker <--IsA-- Missionary 
Ball --IsA--> Pitch <--Synonym--> Gear <--IsA-- Transmission 