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: The shares of Plug Power Inc  (NASDAQ:PLUG) are up 5.8% to trade at $29.11 at last check, following the company's new agreement with Amazon.com (AMZN).
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moderately positive
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