Definition: Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].
Input: Story highlights  George W. Bush  noticeably made Obama laugh during Clinton's speech
 The elder Bush  followed up the concert Monday morning with a joke of  his  own
Washington (CNN)  Former President George W. Bush  made  his  successor  Barack Obama  noticeably snicker at a joke delivered during Bill Clinton's speech at a hurricane relief benefit concert in Texas.
 Mischievous George W Bush  cracks a joke behind Bill Clinton's back and makes Barack Obama giggle [Link] pic.twitter.com/guzehQIj0o â Daily Mail US (@DailyMail) October 23  2017
As Clinton discussed the importance of offering ongoing support to the communities affected by hurricanes Harvey and Maria   Bush  leaned over and quipped something to  his  successor  immediately eliciting a laugh from a Obama  whose reaction garnered much positive attention on social media.

Bush cracks up Obama at hurricane relief concert