( ( ( English , ) ( ( ( ( Foreign Language ) , ) ( Social ( Studies ( , ( Mathematics ( and ( Natural Sciences ) ) ) ) ) ) ) ( -LRB- ( ( it ( ( ( is not ) necessary ) ( that ( ( each field ) ( be represented ) ) ) ) ) -RRB- ) ) ) ) ; )
(ROOT (NP (NP (NP (NNP English)) (, ,) (NP (NP (NNP Foreign) (NNP Language)) (, ,) (NP (NNP Social) (NNPS Studies) (, ,) (NNPS Mathematics) (CC and) (NNP Natural) (NNP Sciences)) (PRN (-LRB- -LRB-) (S (NP (PRP it)) (VP (VBZ is) (RB not) (ADJP (JJ necessary)) (SBAR (IN that) (S (NP (DT each) (NN field)) (VP (VB be) (VP (VBN represented))))))) (-RRB- -RRB-)))) (: ;)))
English, Foreign Language, Social Studies, Mathematics and Natural Sciences (it is not necessary that each field be represented);
(ROOT (S (NP (NP (DT The) (NN field)) (PP (IN of) (NP (NP (NN study)) (VP (VBN known) (PP (IN as) (NP (NNS mathematics))))))) (VP (VBZ is) (VP (VBN called) (NP (NP (DT the) (NN language)) (PP (IN of) (NP (NN science)))))) (. .)))