( ( When ( ( ( ( nitrogen , ) ( with ( ( ( atomic ( number 7 ) ) and ) ( ( atomic weight ) ( of 14 ) ) ) ) ) , ) ( is ( struck ( by ( a ( high ( energy neutron ) ) ) ) ) ) ) ) ( , ( it ( ( ( ( absorbs ( the neutron ) ) and ) ( emits ( a proton ) ) ) . ) ) ) )
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (NP (NN nitrogen)) (, ,) (PP (IN with) (NP (NP (JJ atomic) (NN number) (CD 7)) (CC and) (NP (NP (JJ atomic) (NN weight)) (PP (IN of) (NP (CD 14)))))) (, ,)) (VP (VBZ is) (VP (VBN struck) (PP (IN by) (NP (DT a) (JJ high) (NN energy) (NN neutron))))))) (, ,) (NP (PRP it)) (VP (VP (VBZ absorbs) (NP (DT the) (NN neutron))) (CC and) (VP (VBZ emits) (NP (DT a) (NN proton)))) (. .)))
When nitrogen, with atomic number 7 and atomic weight of 14, is struck by a high energy neutron, it absorbs the neutron and emits a proton.
(ROOT (S (NP (NP (DT The) (JJ low) (JJ atomic) (NN number)) (PP (IN of) (NP (NN beryllium)))) (VP (VBZ allows) (S (NP (PRP it)) (VP (TO to) (VP (VB absorb) (NP (NNPS x-rays)))))) (. .)))