Analyze the sentiment expressed in the tweet. Is it positive, negative, or neutral? Explain the sentiment in relation to the stock mentioned.
TWEET: "RT @WorldRetail: From 2019, @Walmart will be able to trace the origin of certain foods back to their source in 2.2 sec — a process that use…

" STOCK: Walmart DATE: 20/10/2018
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 0.15357142857142858.