Analyze the sentiment expressed in the tweet. Is it positive, negative, or neutral? Explain the sentiment in relation to the stock mentioned.
TWEET: "RT @grants4apps: Join us at the @Bayer @BayerSuomi @BayerSverigeAB booth in @SlushHQ #Slush17 at 2:15 pm for our #startups #DemoDay… " 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.