Analyze the sentiment expressed in the tweet. Is it positive, negative, or neutral? Explain the sentiment in relation to the stock mentioned.
TWEET: "Photos from @eNerds &amp; @Microsoft 2017 Roadmap &amp; Product Demo Event at the Pitt St Store yesterday. #MicrosoftEvent https://t.co/sFSrn4ugbo" STOCK: nan DATE: nan
Sentiment: (Provide sentiment here)
Explanation: The tweet sentiment is related to the stock mentioned, and it's important to interpret the context. The LSTM polarity score is nan and the TextBlob polarity score is nan.