(S (S (NP (BASENP (DT Both) (NNS sets)) (PP (IN of) (BASENP (NNS cases)))) (VP (VBD were) (VP (VBN confirmed) (PP (IN from) (NP (BASENP (NNS batches)) (PP (IN of) (NP (BASENP (NN 24) (NNS samples)) (VP (VBN sent) (PP (IN for) (S (VP (VBG testing)))))))))))) (PERIOD .))