we , today , can prevent its tragic waste of life 
(ROOT (S (NP (PRP we)) (, ,) (NP (NN today)) (, ,) (VP (MD can) (VP (VB prevent) (NP (NP (PRP$ its) (JJ tragic) (NN waste)) (PP (IN of) (NP (NN life))))))))
(ROOT (S (NP (PRP )) (, ) (NP (NN )) (, ) (VP (MD ) (VP (VB ) (NP (NP (PRP$ ) (JJ ) (NN )) (PP (IN ) (NP (NN ))))))))