Analyze the sentiment expressed in the tweet. Is it positive, negative, or neutral? Explain the sentiment in relation to the stock mentioned.
TWEET: "RT @iotconsortium: By 2020, the average cost of #IoT sensors is expect to drop to just $0.38 via @GoldmanSachs @businessinsider https://t.c…
" STOCK: Goldman Sachs DATE: 31/07/2017
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 -0.15.