• to be based, to be based upon sg, to be founded, to rest, to rest on sg
 
	• to couch, to cower, to crouch, to fly low, to lay low, to lurk
 
	• to take sg as one's starting point, to take sg for one's basis
 
	• to calm, to calm down, to die down, to subside
 
	• to be based on facts, to be founded on facts
 
	• to be caused by a mistake, to be due to a mistake