( There ( ( is ( ( an ( eyeglass shop ) ) ( on ( the ( first floor ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBZ is) (NP (NP (DT an) (JJ eyeglass) (NN shop)) (PP (IN on) (NP (DT the) (JJ first) (NN floor))))) (. .)))
There is an eyeglass shop on the first floor.
(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))))) (. .)))