What is the sentiment of this news? Please choose an answer from {strong negative/moderately negative/mildly negative/neutral/mildly positive/moderately positive/strong positive}.
Text: Warren Buffett's Berkshire Hathaway Inc said on Monday it added nearly 14.7 million shares of video game maker Activision Blizzard Inc ahead of Microsoft Corp's $68.7 billion deal to buy the company.
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mildly positive
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