( ACCIDENTS/INJURY ( : ( ( It ( is ( ( the responsibility ) ( of ( the ( student ( to ( ( report ( to ( ( the ( ( teacher or ) supervisor ) ) ( in ( ( charge ( AT ( THE TIME ) ) ) ( OF ( ( THE OCCURRENCE ) ( OF ( AN ACCIDENT ) ) ) ) ) ) ) ) ) ( ( all facts ) ( pertaining ( to ( the accident ) ) ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (FRAG (NP (NNP ACCIDENTS/INJURY)) (: :) (S (NP (PRP It)) (VP (VBZ is) (NP (NP (DT the) (NN responsibility)) (PP (IN of) (NP (DT the) (NN student) (S (VP (TO to) (VP (VB report) (PP (TO to) (NP (NP (DT the) (NN teacher) (CC or) (NN supervisor)) (PP (IN in) (NP (NP (NN charge) (NNP AT) (NNP THE) (NNP TIME)) (PP (IN OF) (NP (NP (DT THE) (NN OCCURRENCE)) (PP (IN OF) (NP (DT AN) (NN ACCIDENT))))))))) (NP (NP (DT all) (NNS facts)) (VP (VBG pertaining) (PP (TO to) (NP (DT the) (NN accident))))))))))))) (. .)))
ACCIDENTS/INJURY: It is the responsibility of the student to report to the teacher or supervisor in charge AT THE TIME OF THE OCCURRENCE OF AN ACCIDENT all facts pertaining to the accident.
(ROOT (S (SBAR (IN If) (S (NP (DT an) (NN accident)) (VP (VBZ happens) (PP (IN during) (NP (DT a) (NN science) (NN experiment)))))) (, ,) (NP (NP (DT the) (JJ first) (NN thing)) (SBAR (S (NP (DT a) (NN student)) (VP (MD should) (VP (VB do)))))) (VP (VBZ is) (NP (NP (NN report)) (PP (TO to) (NP (DT the) (NN teacher))))) (. .)))