In this task, you're given a sentence and your task is to generate a simplified sentence that focuses on lexical paraphrasing from the original sentence given in the input.

Ex Input:
it was not detected again until the hubble space telescope observed it in 1997.

Ex Output:
it was not seen again until the hubble space telescope saw it in 19.

Ex Input:
the empire of nicaea succeeded in capturing constantinople and the rest of the latin empire , thus re-establishing the byzantine empire.

Ex Output:
the byzantine empire came back when the empire of nicaea captured constantinople and the latin empire.

Ex Input:
queen were an english rock band.

Ex Output:
the " queen " was an english rock band.