YOU SAID:
woman at 15 have gender
INTO JAPANESE
15 女性ジェンダーがあります。
BACK INTO ENGLISH
15 female gender.
INTO JAPANESE
15 女性。
BACK INTO ENGLISH
15 women.
INTO JAPANESE
女性 15 人。
BACK INTO ENGLISH
15 women.
That didn't even make that much sense in English.