Accent is a synonym of Emphasis. Emphasis is related to Portray. 
Understanding is a synonym of Reason. Reason is a synonym of Conclude. Conclude is a synonym of Decide. Decide is related to Volunteer. 
Accent <--Synonym--> Emphasis <--RelatedTo--> Portray 
Understanding <--Synonym--> Reason <--Synonym--> Conclude <--Synonym--> Decide <--RelatedTo--> Volunteer 