you would Communicate because Interaction. Interaction is related to Care. Care is related to Nurse. 
Heavy is related to Very. Very is related to Organize. Organize is a type of Initiate. Initiate is the opposite of Close. 
Communicate --MotivatedByGoal--> Interaction <--RelatedTo--> Care <--RelatedTo--> Nurse 
Heavy <--RelatedTo--> Very <--RelatedTo--> Organize --IsA--> Initiate <--Antonym--> Close 