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: When Margaret MacKenzie heard that President Trump had legalised the cultivation of hemp across the US just before Christmas, she immediately thought: "Oh boy, here we go! Things are going to move very fast."

New heights but no high - why hemp sales are soaring