Layout: Layout Full scenes
Surfaces: Colors Images Transparency, etc
Objects: Referring Parts Collections
Ambient: Lights Environment
Interface: Swap objects Adjust view

Often the same word will refer to many objects of the same name. The more general the word, the more randomness in the results.
The chair.
The animal.
The object.

Sometimes you can use an adjective to help select the particular type of an object.
The lounge chair.
The feline animal.
The greek temple.

When an object isn't found for a word, you'll get a standin object.
The green sphere is on the foobar.

When an object has just been referred to, it can be referred to again by "it"
The cat is on the table. It is purple
The flower image is on the cube. It is pink