Can someone tell me the sentence structure of this sentence?

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.

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

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

Certainly! The sentence structure of the sentence you provided is a complex sentence.

To determine the sentence structure, we can break down the sentence into its components:
- The main subject of the sentence is "one."
- The predicate of the sentence is "knows."
- The direct object of the verb "knows" is "that the semi-barbaric princess motions to her lover to pick the door that contains the tiger."
- Within the direct object clause, we can break down the structure further:
- The subject of the clause is "the semi-barbaric princess."
- The verb of the clause is "motions."
- The direct object of the verb "motions" is "to her lover."
- Finally, we have another relative clause modifying "the door" with the subject "that" and the verb "contains."

Therefore, the sentence structure is as follows:
Main Sentence: [One] [knows].
Direct Object Clause: that [the semi-barbaric princess] [motions] [to her lover] [to pick the door] [that contains the tiger].

In summary, the sentence structure is complex because it consists of a main sentence followed by a dependent clause, which itself contains several elements.