Teacher: In this task, you are given a text of the article. Your task is to generate a headline (title) for this article.
Teacher: Now, understand the problem? If you are still confused, see the following example:
australia 's current account deficit shrunk by a record #.## billion dollars -lrb- #.## billion us -rrb- in the june quarter due to soaring commodity prices , figures released monday showed .
Solution: australian current account deficit narrows sharply
Reason: This headline is appropriate for the given article text because the focus of this article is Australian current accounts.

Now, solve this instance: wall street gave up a moderate gain in late trading and closed marginally lower monday after the federal reserve and other central banks added more cash to their banking systems , helping investors set aside some concerns about credit tightness .
Student:
wall street edges lower after banks add liquidity dow falls #.##