Teacher:In this task, you are given a sentence in the English language and your task is to convert English sentence into the Gujarati language.
Teacher: Now, understand the problem? Solve this instance: A biplane performing tricks in the sky with smoke coming from behind. 
Student:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
ધૂમ્રપાનથી પાછળ આવતા આકાશમાં દ્વિપાંખી ચાલતી યુક્તિઓ.