(S (S (BASENP (DT The) (NNS explosives)) (VP (VBD were) (ADJP (JJ home-made)) (CC and) (NP (BASENP (JJ weighed) (NN 600) (NN lb)) (PRN (LRB -LRB-) (BASENP (NN 270) (NN kg)) (RRB -RRB-))))) (PERIOD .))