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そちら， そっち， そなた， そち， 其方
1. that way, that direction
2. there
3. that (one)
4. you, your family, your company
5. that person
你，你那；您家；贵公司；那儿；那边，那个方向；那个；那个人
に
1. at (place, time), in, on, during
2. to (direction, state), toward, into
3. for (purpose)
4. because of (reason), for, with
5. by, from
6. as (i.e. in the role of)
7. per, in, for, a (e.g. "once a month")
8. and, in addition to
9. if, although
tbd