( Furthermore ( , ( ( four passengers ) ( ( had ( to ( have ( ( ( ( limbs amputated ) , ) and ) ( ( many more ) ( needed ( to ( be ( ( cut ( from ( the wreckage ) ) ) ( by ( firefighters ( using ( special ( cutting equipment ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Furthermore)) (, ,) (NP (CD four) (NNS passengers)) (VP (VBD had) (S (VP (TO to) (VP (VB have) (NP (NP (NP (NNS limbs)) (VP (VBN amputated))) (, ,) (CC and) (NP (NP (JJ many) (JJR more)) (VP (VBN needed) (S (VP (TO to) (VP (VB be) (VP (VBN cut) (PP (IN from) (NP (DT the) (NN wreckage))) (PP (IN by) (NP (NP (NNS firefighters)) (VP (VBG using) (NP (JJ special) (NN cutting) (NN equipment)))))))))))))))) (. .)))
Furthermore, four passengers had to have limbs amputated, and many more needed to be cut from the wreckage by firefighters using special cutting equipment.
(ROOT (S (NP (NNP Birds)) (VP (VBP have) (NP (CD four) (NNS limbs))) (. .)))