Classify the given a piece of financial news into three classes: positive, negative, and neutral. Output must be 'positive', 'negative', or 'neutral'.
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Question: Vaisala 's net profit for the third quarter of 2007 dropped to 3.0 mln euro ( $ 4.3 mln ) from 6.8 mln euro ( $ 9.8 mln ) for the same period of 2006 .

Answer: negative

Question: At the same time profit of the company increased by 10 % in H1 and reached Ls 79,000 .

Answer: positive

Question: The union filed a grievance over the company 's overtime assignment policies .

Answer:
negative