Analyze the sentiment expressed in the tweet. Is it positive, negative, or neutral? Explain the sentiment in relation to the stock mentioned.
TWEET: "RT @AmericanExpress: As @Lin_Manuel moves forward, we'll be there to support his next act - and every one that follows. #AmexLife

" STOCK: American Express DATE: 23/10/2018
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.