Can someone tell me the sentence structure of this sentence?

Question

In Frank R. Stockton's short story "The lady or the tiger?" one knows that the semi- barbaric princess motions to her lover to pick the door that contains the tiger.

Answer 1

That's a complex sentence because it has an independent clause --

In Frank R. Stockton's short story "The lady or the tiger?" one knows that the semi- barbaric princess motions to her lover to pick the door

and a dependent clause --

that contains the tiger

Check this site for more information.

http://www.eslbee.com/sentences.htm

Answer 2

ok that's what i was thinking. thank you so much :-)