( ( ( ( ( This solution ) , ) ( prevalent ( in ( many ( older plans ) ) ) ) ) , ) ( ( contains ( ( ( at least ) two ) drawbacks ) ) . ) )
(ROOT (S (NP (NP (DT This) (NN solution)) (, ,) (ADJP (JJ prevalent) (PP (IN in) (NP (JJ many) (JJR older) (NNS plans)))) (, ,)) (VP (VBZ contains) (NP (QP (IN at) (JJS least) (CD two)) (NNS drawbacks))) (. .)))
This solution, prevalent in many older plans, contains at least two drawbacks.
(ROOT (S (NP (DT All) (NNS solutions)) (VP (VBP contain) (NP (QP (IN at) (JJS least) (CD two)) (NNS substances))) (. .)))