so it's sociology
( so ( it ( 's sociology ) ) )
(ROOT (SBAR (IN so) (S (NP (PRP it)) (VP (VBZ 's) (NP (NN sociology))))))
so it's related to people 
( so ( it ( 's ( related ( to people ) ) ) ) )
(ROOT (SBAR (IN so) (S (NP (PRP it)) (VP (VBZ 's) (VP (VBN related) (PP (TO to) (NP (NNS people))))))))