You are given a sentence in Polish. Your job is to translate the Polish sentence into Japanese.

(Śmiech) Wiedzieliście, że to był podstęp?

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
（ 笑 ） ひっかけだと分かっていたんでしょう ？