( Electrons ( ( surround ( ( ( the atom ) ( in pathways ) ) ( called orbitals ) ) ) . ) )
(ROOT (S (NP (NNS Electrons)) (VP (VBP surround) (SBAR (S (NP (NP (DT the) (NN atom)) (PP (IN in) (NP (NNS pathways)))) (VP (VBD called) (NP (NNS orbitals)))))) (. .)))
Electrons surround the atom in pathways called orbitals .
(ROOT (S (NP (DT The) (NN orbital)) (VP (VBZ is) (NP (NP (DT the) (NN region)) (VP (VBN called) (SBAR (WHADVP (WRB where)) (S (NP (DT an) (NN electron)) (VP (VBZ is) (ADJP (RBS most) (JJ likely) (S (VP (TO to) (VP (VB be) (VP (VBN found)))))))))))) (. .)))