In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Context: Ball became a regular in the Rams matchday 16 until he picked up an ankle injury in a reserves game against Belper Town on 26 March 2012 Link Information: The following season they finished as runners-up in the Premier Division and were promoted to Division One of the Northern Premier League Question: Which league was Belper Town F.C. playing in when Ball picked up an ankle injury?
Answer: Northern Premier League