Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: The Northern Ireland Secretary has said it "simply isn't tenable" to have different agricultural rules for one side of a field from the other side of a field after Brexit.

Karen Bradley 'pragmatic' on post-Brexit border