( ( Toy makers ) ( ( began ( ( ( establishing ( their trade ) ) ( in America ) ) ( by ( the ( early ( nineteenth century ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Toy) (NNS makers)) (VP (VBD began) (S (VP (VBG establishing) (NP (PRP$ their) (NN trade)) (PP (IN in) (NP (NNP America))) (PP (IN by) (NP (DT the) (JJ early) (NN nineteenth) (NN century)))))) (. .)))
Toy makers began establishing their trade in America by the early nineteenth century.
(ROOT (S (NP (NNS Microscopes)) (VP (VBD were) (ADVP (RB first)) (VP (VBN developed) (PP (IN in) (NP (DT the) (JJ early) (NN 1600s))) (PP (IN by) (NP (JJ eyeglass) (NNS makers))))) (. .)))