Given a text, write a compressed version of it in a single sentence.

Input: Consider Input: Daniel Hungerford observed that the Richmond-Kotelchuck model suggests that changes in practice result from effort applied to all three elements of the model-political will, social strategy, and knowledge base. It might seem that research activities apply only to the knowledge base aspect of the model.

Output: Hungerford observed that the Richmond-Kotelchuck model suggests that changes in practice result from effort applied to will, social strategy, and knowledge base. It seems that research apply only to the knowledge base aspect.

Input: Consider Input: The Food and Agriculture Organization of the United Nations reports that 47 percent to 50 percent of stocks are " fully exploited, " meaning that catches have either reached or are close to maximum limits.

Output: The Food and Agriculture Organization of the United Nations reports that 47 percent to 50 percent of stocks are " fully exploited, ".

Input: Consider 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.