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it feels that if we can fit into our families, we can fit into the world. and if our families can see us for who we really are, we can be who we are notonly in the family but also in the world.

for who ???? who 가 혹시 관계대명사로 쓰인건가요 ?????? 관계대명사라면 선행사가 무엇인가요 ??
전치사 for은 왜 쓰여진거죠 ?

밑줄친 for who에 대해서 설명 좀 부탁드리겠습니다ㅜㅠㅜㅠ