Analyze the sentiment expressed in the tweet. Is it positive, negative, or neutral? Explain the sentiment in relation to the stock mentioned.
TWEET: "Throwback for my #Swiftie friends! ❤️ Year ago today... ready for that @taylorswift13 @UPS truck &amp; the poster isn’t… https://t.co/4xnsq3IjZs" 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.