Definition: Given a text, write a compressed version of it in a single sentence.
Input: Residential cream skimmers would serve bulk mailers with sufficient volumes of mail for the areas they serve. We assume that only mail that is presorted to the carrier route level would be vulnerable to cream skimming.
Output:
Bulk mailers with sufficient volumes of mail for areas served. We assume only presorted mail to the carrier route level would be vulnerable to cream skimming.