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.

Input: Consider 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.

Output: Russian aircraft have entered Ukrainian airspace.


Input: Consider Input: The Flint master plan team will begin forming implementation task groups to coordinate and implement the strategies developed in Imagine Flint Master Plan.

Output: The master plan team will begin forming implementation task groups.


Input: Consider Input: Tokyo, April 7 Japan and India will hold working-level talks here Wednesday on Japan's export of US2 rescue plane to India, Japan's defence ministry said Monday.


Output: The new BMW 5 Series will go on sale in September.


