( ( ( the elements ) ( in ( Group 17 ) ) ) ( of ( the ( periodic table ) ) ) )
(ROOT (NP (NP (NP (DT the) (NNS elements)) (PP (IN in) (NP (NNP Group) (CD 17)))) (PP (IN of) (NP (DT the) (JJ periodic) (NN table)))))
the elements in Group 17 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)))) (. .)))