<-prior    up^
 Methods of moving attn to another node next->

Vance moves attention to the first arrow of the first predicate of the object node.  It fails when the object of the arrow is not a node. That  {Vance can change attention to another graph, if there are no other arrows in the current graph on the object node. } is under consideration.    
 diagram of vance moving attn to the object of a arrow  
Jace moves attention from one node to another node in the graph. It fails when there are no more nodes in the graph.   diagram showing jace moving attention to another node within the same graph