Given a piece of financial news and its polarity, classify it into 'true' if the polarity is correct and classify into 'false' if the polarity is incorrect. Output must be 'true' or 'false'.

news:A purchase agreement for 7,200 tons of gasoline with delivery at the Hamina terminal , Finland , was signed with Neste Oil OYj at the average Platts index for this September plus eight US dollars per month .
polarity:positive
true