Analyze the sentiment expressed in the tweet. Is it positive, negative, or neutral? Explain the sentiment in relation to the stock mentioned.
TWEET: "RT @Reuters: Cubans are heartbroken, angry can't seek U.S. visas in Havana https://t.co/xaaKG0Sm5A https://t.co/N8xbUapfb1
" STOCK: Reuters DATE: 30/09/2017
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 -0.5.