TASK DEFINITION: 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.
PROBLEM: on 8 november 1917 , lenin was elected the chairman of the council of people 's commissars by the russian congress of soviets.

SOLUTION: on 8 november 1917 , the russian congress eclected lenin as a chairman of the council of people 's commissars.

PROBLEM: he was initially offered a salary of $ 50,000 as well as a percentage of ownership of the company.

SOLUTION: he was at first offered a salary of $ 50,000 as well as a share of ownership of the company.

PROBLEM: much of the province lies in the plain of the arno river and has thus become an exurban sprawl around the city of florence.

SOLUTION:
a lot of the province is in the plain of the arno river , and has thus become an outside-city sprawl around the city of florence.