In this task, you are given a piece of an article. Your task is to generate a short summary of the text. Try to give the summary in just one sentence.

[Q]: An Indian oil tanker seized by Iran in August for allegedly polluting Gulf waters has been allowed to leave the port where it was held, an Iranian official said yesterday.
[A]: An Indian tanker seized by Iran has been allowed to leave.

[Q]: US Secretary of State John Kerry will visit China Friday and Saturday, Chinese foreign ministry spokeswoman said Monday.
[A]: Operation Elveden : a former Surrey police officer is to be charged.

[Q]: Quevega is to retire from racing and begin a career as a broodmare after being beaten by shock winner Jetson in the Ladbrokes World Series Hurdle at Punchestown.
[A]:
More than half of all couples will meet online by 2031.