( ( ( Many species ) ( of birds ) ) ( ( have ( ( ( ( at least ) four ) or ) ( five ( louse species ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Many) (NNS species)) (PP (IN of) (NP (NNS birds)))) (VP (VBP have) (NP (NP (QP (IN at) (JJS least) (CD four))) (CC or) (NP (CD five) (JJ louse) (NNS species)))) (. .)))
Many species of birds have at least four or five louse species.
(ROOT (S (NP (NNP Birds)) (VP (VBP have) (NP (CD four) (NNS limbs))) (. .)))