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: A U.S. retail workers' union on Tuesday accused Amazon.com Inc of unlawfully interfering with a union election at an Alabama warehouse where the company had already been found to have engaged in unlawful conduct to deter labor organizing.
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moderately negative
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