Analyze the sentiment expressed in the tweet. Is it positive, negative, or neutral? Explain the sentiment in relation to the stock mentioned.
TWEET: "It is the perfect Halloween costume, an 'I donated blood sticker'. Get yours today at @Allianz in Petaluma 10-2p https://t.co/a2qgfLU6Mg
" STOCK: Allianz DATE: 31/10/2017
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 1.0.