Analyze the sentiment expressed in the tweet. Is it positive, negative, or neutral? Explain the sentiment in relation to the stock mentioned.
TWEET: "RT @b_art15: @Siemens 15 years ?  It will take decades before cities can afford to accommodate  autonomous vehicles,, plus people's relucta…

" STOCK: Siemens DATE: 01/10/2018
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 -1 and the TextBlob polarity score is 0.0.