( ( Elements ( ( ( present ( between ( the ( group -2 ) ) ) ) and ) ( group-13 ( in ( the ( modern ( periodic table ) ) ) ) ) ) ) ( ( are ( the ( transition elements ) ) ) . ) )
(ROOT (S (NP (NP (NNS Elements)) (ADJP (ADJP (JJ present) (PP (IN between) (NP (DT the) (NN group) (CD -2)))) (CC and) (ADJP (JJ group-13) (PP (IN in) (NP (DT the) (JJ modern) (JJ periodic) (NN table)))))) (VP (VBP are) (NP (DT the) (NN transition) (NNS elements))) (. .)))
Elements present between the group -2 and group-13 in the modern periodic table are the transition elements.
(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)))) (. .)))