why this project was undertaken 
(ROOT (SBAR (WHADVP (WRB why)) (S (NP (DT this) (NN project)) (VP (VBD was) (VP (VBN undertaken))))))
(ROOT (SBAR (WHADVP (WRB )) (S (NP (DT ) (NN )) (VP (VBD ) (VP (VBN ))))))