Your standing in a living room, facing towards wide open door, now turn back, in-front of you you can see a  table on the top of the table there is portrait hanged to the wall, walk to the table, now turn to your left, in-front of you you can see a close door, walk to the close door, now turn right. In-front of you you can see a open door on your right, stand at the entrance  of the open door, that's your end point.