Clinton used a floor mop to clean up the dirt he had tracked onto the shiny floor of an elementary school.
( Clinton ( ( used ( ( a floor ) ( mop ( to ( ( clean up ) ( ( the dirt ) ( he ( had ( tracked ( onto ( ( the ( shiny floor ) ) ( of ( an ( elementary school ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Clinton)) (VP (VBD used) (S (NP (DT a) (NN floor)) (VP (VB mop) (S (VP (TO to) (VP (VB clean) (PRT (RP up)) (NP (NP (DT the) (NN dirt)) (SBAR (S (NP (PRP he)) (VP (VBD had) (VP (VBN tracked) (PP (IN onto) (NP (NP (DT the) (JJ shiny) (NN floor)) (PP (IN of) (NP (DT an) (JJ elementary) (NN school)))))))))))))))) (. .)))
Clinton tracked dirt onto the floor of a high school and left without cleaning it.
( Clinton ( ( ( ( ( tracked dirt ) ( onto ( ( the floor ) ( of ( a ( high school ) ) ) ) ) ) and ) ( left ( without ( cleaning it ) ) ) ) . ) )
(ROOT (S (NP (NNP Clinton)) (VP (VP (VBD tracked) (NP (NN dirt)) (PP (IN onto) (NP (NP (DT the) (NN floor)) (PP (IN of) (NP (DT a) (JJ high) (NN school)))))) (CC and) (VP (VBD left) (PP (IN without) (S (VP (VBG cleaning) (NP (PRP it))))))) (. .)))