describe the scene as the entire population of lilliput turns out to see gulliver on his arrival in metropolis

Expression? You're looking for dialogue? If so, there isn't any. But I have provided you with the paragraph describing Gulliver's arrival below.

"At the place where the carriage stopped there stood an ancient temple, esteemed to be the largest in the whole kingdom; which, having been polluted some years before by an unnatural murder, was, according to the zeal of those people, looked upon as profane, and therefore had been applied to common use, and all the ornaments and furniture carried away. In this edifice it was determined I should lodge. The great gate fronting to the north was about four feet high, and almost two feet wide, through which I could easily creep. On each side of the gate was a small window, not above six inches from the ground: into that on the left side, the king's smith conveyed four-score and eleven chains, like those that hang to a lady's watch in Europe, and almost as large, which were locked to my left leg with six-and-thirty padlocks. Over against this temple, on the other side of the great highway, at twenty feet distance, there was a turret at least five feet high. Here the emperor ascended, with many principal lords of his court, to have an opportunity of viewing me, as I was told, for I could not see them. It was reckoned that above a hundred thousand inhabitants came out of the town upon the same errand; and, in spite of my guards, I believe there could not be fewer than ten thousand at several times, who mounted my body by the help of ladders. But a proclamation was soon issued, to forbid it upon pain of death. When the workmen found it was impossible for me to break loose, they cut all the strings that bound me; whereupon I rose up, with as melancholy a disposition as ever I had in my life. But the noise and astonishment of the people, at seeing me rise and walk, are not to be expressed. The chains that held my left leg were about two yards long, and gave me not only the liberty of walking backwards and forwards in a semicircle, but, being fixed within four inches of the gate, allowed me to creep in, and lie at my full length in the temple."

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