(S (BASENP (DT This) (NN restriction)) (VP (VBZ is) (S (VP (TO to) (VP (VP (VB try) (CC and) (VB prevent)) (NP (DT the) (NP (ADJP (JJ dangerous) (COMMA ,) (JJ home-made)) (QT (DQL ``) (QTC (BASENP (NN sparkler) (NNS bombs)) (PERIOD .)) (DQR '')))))))))