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: after reviewing the documents , some historians suggest that adams does not deserve equal credit with le verrier.

SOLUTION: after looking at the documens , some historians say that adams does not deserve equal credit with le verrier.

PROBLEM: on october 14 , 1960 , presidential candidate john f. kennedy proposed the concept of what became the peace corps on the steps of michigan union.

SOLUTION: presidential candidate john f. kennedy proposed the peace corps on the steps of michigan union in 1960.

PROBLEM: the historical method comprises the techniques and guidelines by which historians use primary sources and other evidence to research and then to write history.

SOLUTION:
the historical method consist of techniques and guidelines which historians use primary sources as well as evidence to research and write history.