[所, suǒㄙㄨㄛˇ] actually; place; classifier for houses, small buildings, institutions etc; that which; particle introducing a relative clause or passive#111
[所属 / 所屬, suǒ shǔㄙㄨㄛˇ ㄕㄨˇ] one's affiliation (i.e. the organization one is affiliated with); subordinate (i.e. those subordinate to oneself); belonging to; affiliated; under one's command#5853