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 Q]: they are rivaled as biological materials in toughness only by chitin.
[EX A]: only chitin rivals them as biological materials.

[EX Q]: its authorship is generally attributed to a person named obadiah , which means “ servant -lrb- or worshipper -rrb- of the lord ”.
[EX A]: its authorship is credited to a person named obadiah , which means “ servant -lrb- or worshipper -rrb- of the lord ..

[EX Q]: tajikistan , turkmenistan and uzbekistan border afghanistan to the north , iran to the west , pakistan to the south and the people 's republic of china to the east.
[EX A]:
tajikistan , turkmenistan and uzbekistan border afghanistan to the north , iran to the west , pakistan to the south and china to the east.