( ( ( Common ( human diseases ) ) ( caused ( by viruses ) ) ) ( ( include ( ( ( ( ( ( ( the ( common cold ) ) , ) ( the flu ) ) , ) chickenpox ) and ) ( cold sores ) ) ) . ) )
(ROOT (S (NP (NP (JJ Common) (JJ human) (NNS diseases)) (VP (VBN caused) (PP (IN by) (NP (NNS viruses))))) (VP (VBP include) (NP (NP (DT the) (JJ common) (NN cold)) (, ,) (NP (DT the) (NN flu)) (, ,) (NP (NN chickenpox)) (CC and) (NP (JJ cold) (NNS sores)))) (. .)))
Common human diseases caused by viruses include the common cold, the flu, chickenpox and cold sores.
(ROOT (S (NP (NP (DT The) (JJ common) (NN cold)) (CC and) (NP (NN flu))) (VP (VBP are) (NP (NP (NNS examples)) (PP (IN of) (NP (NP (JJ human) (NNS diseases)) (VP (VBN caused) (PP (IN by) (NP (NNS viruses)))))))) (. .)))