With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ted Kennedy was in an accident.
text_B: The Chappaquiddick incident was a single-vehicle car accident on Chappaquiddick Island , Massachusetts on July 18 , 1969 that was the result of U.S. Senator Ted Kennedy 's negligence and resulted in the death of his 28-year-old companion , Mary Jo Kopechne , who was trapped inside the vehicle .. Mary Jo Kopechne. Mary Jo Kopechne. Ted Kennedy. Ted Kennedy. U.S. Senator. United States Senate. According to Kennedy 's own testimony , he accidentally drove his car off the one-lane bridge and into a tidal channel .. He swam free , left the scene , and did not report the accident to authorities for ten hours .. Meanwhile , Kopechne had died by drowning in the vehicle that was submerged underwater .. The next day , Kopechne 's body and the car were both recovered by divers .. Kennedy pleaded guilty to a charge of leaving the scene of a crash causing personal injury ; he later received a two-month suspended jail sentence .. The Chappaquiddick incident became a nationally known scandal during the 1970s and likely influenced Kennedy 's decision not to campaign for President in 1972 and 1976 .. President. President of the United States. United States presidential election, 1972. United States presidential election, 1976
related.