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: a borough is an administrative division of various countries.

SOLUTION: a borough is an administrative division of various countri.

PROBLEM: a similar disclosure had occurred earlier with rc4.

SOLUTION: an identical disclosure happend earlier withr.

PROBLEM: the pkcs # 1 standard also incorporates processing schemes designed to provide additional security for rsa signatures , e.g. , the probabilistic signature scheme for rsa -lrb- rsa-pss -rrb-.

SOLUTION:
the pkcs # 1 standard also brings together processing schemes designed to give more security for rsa signatures , e.g. , the probabilistic signature scheme for rsa -lrb- rsa-pss -rrb-.