I downloaded a 3d model of a car. By judging by the skins and images available model treats wheels and car body as separate nodes. I want to access its child nodes (wheels) to specify animation.

But I don't know the names of its child nodes. Is it possible to figure out names of its child nodes by looking at the file content. I have a obj file of the 3D model. I am using JMonkey 2.

Thank you in advance