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.

Q: working group i : assesses scientific aspects of the climate system and climate change.

A: working group i : asseses scientific aspects of climate system and change.
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Q: demographics the population of the city is now largely made up of the descendants of laborers who were hired for labor from india in the 19th century.

A: -lrb- information about people / combinations of different kinds of people -rrb- the population of the city is now mostly made up of the descendants of laborers who were hired for labor from india in the 19th centu.
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Q: roof tiles dating back to the tang dynasty with this symbol have been found west of the ancient city of chang ' an -lrb- modern-day xian -rrb-.

A:
roof tiles date back to the tang dynasty with this symbol which was found west of the ancient city of chang 'an.
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