Suppose is a synonym of Think. one thing you do when you Think is Quiet. Quiet is related to Reading. Reading is related to Visual. 
Write is a synonym of Display. Display is a synonym of Indicate. 
Suppose <--Synonym--> Think --HasSubevent--> Quiet <--RelatedTo--> Reading <--RelatedTo--> Visual 
Write <--Synonym--> Display <--Synonym--> Indicate 