(S (S (S (S (S (BASENP (NN Two) (NNS people)) (VP (VBD were) (VP (VBN killed)))) (CC and) (S (BASENP (NN two) (NNS others)) (VP (VBD were) (ADJP (RB seriously) (JJ injured))))) (BASENP (NN yesterday))) (SBAR (WHADVP (WRB when)) (S (BASENP (DT a) (NN boulder)) (VP (VBD collapsed) (PP (IN onto) (NP (BASENP (DT a) (NN house)) (PP (IN in) (NP (BASENP (DT the) (JJ German) (NN town)) (PP (IN of) (NP (BASENP (NNP Stein) (FW an) (FW der) (NNP Traun)) (COMMA ,) (NP (BASENP (NN south-east)) (PP (IN of) (BASENP (NNP Munich)))))))))))))) (PERIOD .))