to worry about being subjected to farts , urine , feces , semen , or any of the other foul substances 
(ROOT (S (VP (TO to) (VP (VB worry) (PP (IN about) (S (VP (VBG being) (VP (VBN subjected) (PP (IN to) (NP (NNS farts) (, ,) (NN urine) (, ,) (NNS feces) (, ,) (NN semen) (, ,) (CC or) (NP (NP (DT any)) (PP (IN of) (NP (DT the) (JJ other) (NN foul) (NNS substances))))))))))))))
(ROOT (S (VP (TO ) (VP (VB ) (PP (IN ) (S (VP (VBG ) (VP (VBN ) (PP (IN ) (NP (NNS ) (, ) (NN ) (, ) (NNS ) (, ) (NN ) (, ) (CC ) (NP (NP (DT )) (PP (IN ) (NP (DT ) (JJ ) (NN ) (NNS ))))))))))))))