( ( The bones ) ( ( ( ( ( are ( connected ( at joints ) ) ) and ) ( and held ) ) ( ( together ( by ( strong bands ) ) ) ( called ligaments ) ) ) . ) )
(ROOT (S (NP (DT The) (NNS bones)) (VP (VP (VBP are) (VP (VBN connected) (PP (IN at) (NP (NNS joints))))) (CC and) (PRN (CC and) (ADJP (VBN held))) (VP (ADVP (RB together) (PP (IN by) (NP (JJ strong) (NNS bands)))) (VBD called) (NP (NNS ligaments)))) (. .)))
The bones are connected at joints and and held together by strong bands called ligaments.
(ROOT (S (NP (PRP You)) (VP (VBP call) (NP (NP (DT the) (NN part)) (PP (IN of) (NP (NP (DT the) (JJ skeletal) (NN system)) (SBAR (WHNP (WDT that)) (S (VP (VBZ connects) (NP (NNS bones) (NNS joints))))))))) (. .)))