Given the task definition and input, reply with output. 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: Upon their return to the UK, on 2 June 1982 the group played at the Camden Palace (now called Koko) and opened for Big Country at the Royal Court Theatre, Liverpool (19 June 1982) Link Information: none Question: How many record sales did Big Country have the year that Uropa Lula opened for them at Camden Palace?
Answer: none