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.

Ex Input:
Russian Foreign Minister Sergei Lavrov has said that Ukraine must meet its commitments based on the agreement reached last week in Geneva.

Ex Output:
Ukraine must meet its commitments.

Ex Input:
''I can confirm that on several occasions in the last 24 hours, Russian aircraft have entered Ukrainian airspace,'' the spokesman, Colonel Steve Warren, said.

Ex Output:
Russian aircraft have entered Ukrainian airspace.

Ex Input:
iPhone maker, Apple, is accused of hiding its profits once again.

Ex Output:
Maker, Apple, is accused of hiding its profits again.