The order must be broken down into groups of units to be worked on together.
( ( The order ) ( ( must ( be ( ( ( broken down ) ( into ( groups ( of units ) ) ) ) ( to ( be ( worked ( on together ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN order)) (VP (MD must) (VP (VB be) (VP (VBN broken) (PRT (RP down)) (PP (IN into) (NP (NP (NNS groups)) (PP (IN of) (NP (NNS units))))) (S (VP (TO to) (VP (VB be) (VP (VBN worked) (PP (IN on) (ADVP (RB together)))))))))) (. .)))
The customer's order needs to be split into several groups to be worked on.
( ( ( The ( customer 's ) ) order ) ( ( needs ( to ( be ( ( split ( into ( several groups ) ) ) ( to ( be ( worked on ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN customer) (POS 's)) (NN order)) (VP (VBZ needs) (S (VP (TO to) (VP (VB be) (VP (VBN split) (PP (IN into) (NP (JJ several) (NNS groups))) (S (VP (TO to) (VP (VB be) (VP (VBN worked) (PRT (RP on))))))))))) (. .)))