felt myself powerfully drawn toward the light -- the light of the exit sign 
(ROOT (VP (VBD felt) (S (NP (PRP myself)) (ADVP (RB powerfully)) (VP (VBN drawn) (PP (IN toward) (NP (NP (DT the) (NN light)) (, --) (NP (NP (DT the) (NN light)) (PP (IN of) (NP (DT the) (NN exit) (NN sign))))))))))
(ROOT (VP (VBD ) (S (NP (PRP )) (ADVP (RB )) (VP (VBN ) (PP (IN ) (NP (NP (DT ) (NN )) (, ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (DT ) (NN ) (NN ))))))))))