that , half an hour in , starts making water torture seem appealing 
(ROOT (SBAR (IN that) (, ,) (S (ADVP (NP (PDT half) (DT an) (NN hour)) (RP in)) (, ,) (VP (VBZ starts) (S (VP (VBG making) (S (NP (NN water) (NN torture)) (VP (VB seem) (S (ADJP (JJ appealing)))))))))))
(ROOT (SBAR (IN ) (, ) (S (ADVP (NP (PDT ) (DT ) (NN )) (RP )) (, ) (VP (VBZ ) (S (VP (VBG ) (S (NP (NN ) (NN )) (VP (VB ) (S (ADJP (JJ )))))))))))