is that i ca n't remember a single name responsible for it 
(ROOT (VP (VBZ is) (SBAR (IN that) (S (NP (PRP i)) (VP (MD ca) (RB n't) (VP (VB remember) (NP (NP (DT a) (JJ single) (NN name)) (ADJP (JJ responsible) (PP (IN for) (NP (PRP it)))))))))))
(ROOT (VP (VBZ ) (SBAR (IN ) (S (NP (PRP )) (VP (MD ) (RB ) (VP (VB ) (NP (NP (DT ) (JJ ) (NN )) (ADJP (JJ ) (PP (IN ) (NP (PRP )))))))))))