Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Russian President Vladimir Putin told German Chancellor Angela Merkel in phone talks on Monday that Ukraine needs constitutional reform and also said that Moldova's breakaway Transdniestr region requires measures to end a de facto blockade.
Student:
Lady Gaga is fighting to keep crown.