(S (S (NP (NP (ADVP (IN At) (JJS least)) (NN 20)) (PP (IN of) (BASENP (DT those)))) (VP (VBD appeared) (S (VP (TO to) (VP (VB be) (NP (BASENP (NNS cases)) (SBAR (WHADVP (WRB where)) (S (BASENP (NNS journalists)) (VP (VBD were) (VP (ADVP (RB directly)) (VP (VBN targeted) (PP (IN because) (PP (IN of) (BASENP (PRPD their) (NN profession))))))))))))))) (PERIOD .))