How do you assemble the machine in 39 clues mission 8?

The machine is a robot dog.

First, take the large piece, the torso, and grab the wire with the green end, the tail. Put it on the green insert on the torso. Second, take the purple piece with the thing that looks like a red button on it and attach it to the purple insert. Then take the piece with the orange end with a red bulb and attach it to the head. Thirdly, take the orange piece and put it to the orange insert on the torso. If it doesn't work, try the other piece. Then try the other orange piece again. Do the same with the yellow pieces.

Congratulations, your robot dog is done.