YOU SAID:

Acetogens flew into the red pants.

INTO JAPANESE

アセトジェンが赤いズボンに飛び込んだ。

BACK INTO ENGLISH

Acetogen jumped into his red pants.

INTO JAPANESE

アセトジェンは彼の赤いズボンに飛び込んだ。

BACK INTO ENGLISH

Acetogen jumped into his red pants.