( ( of ( ( ( ( ( language arts ) and ) ( social studies ) ) , ) ( of ( ( mathematics and ) science ) ) ) ) . )
(ROOT (FRAG (PP (IN of) (NP (NP (NP (NN language) (NNS arts)) (CC and) (NP (JJ social) (NNS studies))) (, ,) (PP (IN of) (NP (NN mathematics) (CC and) (NN science))))) (. .)))
of language arts and social studies, of mathematics and science.
(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)))))) (. .)))