(UCP (UCP (NP (BASENP (NNP San) (NNP Fernando)) (COMMA ,) (BASENP (NNP Chile))) (COLON --) (S (NP (BASENP (NN Ten) (NNS students)) (PP (IN from) (NP (BASENP (DT the) (NNP Liceo) (NNP María) (NNP Luisa) (NNP Bombal)) (PP (IN of) (NP (BASENP (NNP Rancagua)) (COMMA ,) (BASENP (NNP O'Higgins) (NNP Region))))))) (VP (VBD were) (VP (VP (VBN detained) (PP (IN by) (BASENP (DT the) (JJ local) (NNS police)))) (BASENP (NN yesterday)))))) (PERIOD .))