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: Markets will increasingly focus on Google's bottom-line as revenue growth slows in a challenging macro environment. While the CEO has promised to make things "20% more efficient," it's unclear whether this means costs will go down by an equal percentage.
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mildly negative
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