( Sulfur ( ( is ( in ( ( group 16 ) ( of ( the ( periodic table ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Sulfur)) (VP (VBZ is) (PP (IN in) (NP (NP (NN group) (CD 16)) (PP (IN of) (NP (DT the) (JJ periodic) (NN table)))))) (. .)))
Sulfur is in group 16 of the periodic table.
(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)))) (. .)))