Classify the given a piece of financial news into three classes: positive, negative, and neutral. Output must be 'positive', 'negative', or 'neutral'.
Q: 17 March 2011 - Goldman Sachs estimates that there are negative prospects for the Norwegian mobile operations of Norway 's Telenor ASA OSL : TEL and Sweden 's TeliaSonera AB STO : TLSN in the short term .
A:
negative