(QTL (DQL ``) (QTC (S (PP (IN On) (NP (BASENP (DT the) (NN basis)) (PP (IN of) (NP (BASENP (JJ available) (NN evidence)) (CONJP (COMMA ,) (CC and)) (NP (BASENP (DT these) (JJ expert) (NNS assessments)) (PP (IN of) (BASENP (DT the) (NN evidence)))))))) (COMMA ,) (S (NP (BASENP (DT the) (JJ scientific) (NNS criteria)) (PP (IN for) (BASENP (DT an) (NN influenza) (NN pandemic)))) (VP (VBP have) (VP (VBN been) (VP (VBN met)))))) (PERIOD .)))