code: function pull_seeds(entity, test_p){
  	each(entity.annotations(), function(ann){
  	    
  	    //console.log(ann.key(), ann.value_type(), ann.value());
  	    
  	    // Is it an evidence annotation.
  	    if( ! test_p(ann) ){
  		// Skip.
  		//console.log('skip folding with failed test');
  	    }else{
  		//console.log('start folding with passed test');
  
  		// If so, and the individual in question exists, it is
  		// the jumping off point for the evidence folding
  		// subgraph.
  		var ref_node_id = ann.value();
  		var ref_node = anchor.get_node(ref_node_id);
  		if( ref_node ){
  		    seeds[ref_node_id] = entity;
  		}
  	    }
  	});
      }
docs: collect all possibilities here