(S (S (BASENP (DT The) (NNS men)) (VP (VBD were) (VP (VP (VBN charged) (PP (IN with) (NP (BASENP (JJ gross) (NN indecency)) (CC and) (BASENP (JJ unnatural) (NNS acts))))) (COMMA ,) (PP (VBN based) (PP (IN on) (NP (BASENP (NNS laws)) (VP (VBN imposed) (PP (IN during) (NP (BASENP (DT the) (JJ British) (JJ colonial) (NN period)) (PP (IN in) (BASENP (NNP Malawi)))))))))))) (PERIOD .))