Producer is related to Oak. Oak is a type of Wood. Wood is related to Pine. 
Communication is related to Offer. Offer is the opposite of Refuse. Refuse is related to Answer. Question wants (to) Answer. 
Producer <--RelatedTo--> Oak --IsA--> Wood <--RelatedTo--> Pine 
Communication <--RelatedTo--> Offer <--Antonym--> Refuse <--RelatedTo--> Answer <--Desires-- Question 