, the project should have been made for the tube . 
(ROOT (S (, ,) (NP (DT the) (NN project)) (VP (MD should) (VP (VB have) (VP (VBN been) (VP (VBN made) (PP (IN for) (NP (DT the) (NN tube))))))) (. .)))
(ROOT (S (, ) (NP (DT ) (NN )) (VP (MD ) (VP (VB ) (VP (VBN ) (VP (VBN ) (PP (IN ) (NP (DT ) (NN ))))))) (. )))