( ( ( Breeding birds ) ( of ( any species ) ) ) ( ( is ( ( ( ( a ( seven day ) ) ( a week ) ) , ) ( year ( round job ) ) ) ) . ) )
(ROOT (S (NP (NP (VBG Breeding) (NNS birds)) (PP (IN of) (NP (DT any) (NN species)))) (VP (VBZ is) (NP (NP (NP (DT a) (CD seven) (NN day)) (NP (DT a) (NN week))) (, ,) (NP (NN year) (NN round) (NN job)))) (. .)))
Breeding birds of any species is a seven day a week, year round job.
(ROOT (S (NP (NNP Birds)) (VP (VBP live) (CC and) (VBP breed) (PP (IN on) (NP (NP (CD seven)) (PP (IN of) (NP (DT the) (NN continents)))))) (. .)))
Birds live and breed on seven of the continents.