{"from":1,"to":2,"label":"A","time":3}
{"from":1,"to":3,"label":"B","time":2}
{"from":1,"to":4,"label":"C","time":5}
{"from":2,"to":4,"label":"D","time":1}
{"from":3,"to":4,"label":"E","time":1}
{"from":4,"to":5,"label":"F","time":3}