How do you diagram this sentence, with a sentence tree?

He loved the sound of pancake batter hissing on the griddle.

See the other post for help with diagramming.

I don't understand the term "tree" but it might have something to do with "hissing..." being a participial phrase.

=)

He loved sound .... is your basic sentence. He = subject; loved = verb; sound = direct object.

of pancake batter = (prepositional phrase) branch off of sound
hissing on the griddle = ( participial phrase) branch off of batter.