( ( ( ( b -RRB- ) ( ( The elements ) ( in ( Group 0 ) ) ) ) ( of ( the ( periodic table ) ) ) ) ( ( are ( called ( the ( noble gases ) ) ) ) . ) )
(ROOT (S (NP (NP (LST (LS b) (-RRB- -RRB-)) (NP (DT The) (NNS elements)) (PP (IN in) (NP (NNP Group) (CD 0)))) (PP (IN of) (NP (DT the) (JJ periodic) (NN table)))) (VP (VBP are) (VP (VBN called) (NP (DT the) (JJ noble) (NNS gases)))) (. .)))
b) The elements in Group 0 of the periodic table are called the noble gases.
(ROOT (S (NP (NP (NNP Group) (CD 13)) (PP (IN of) (NP (DT the) (JJ periodic) (NN table)))) (VP (VBZ is) (ADVP (RB also)) (VP (VBN called) (NP (DT the) (DT the) (NN boron) (NN group)))) (. .)))