Analyze the sentiment expressed in the tweet. Is it positive, negative, or neutral? Explain the sentiment in relation to the stock mentioned.
TWEET: "RT @LisaSu: Happy to welcome the newest members of our @AMDRyzen family with new commercial systems from @HP, @Dell, @lenovo.… 
" STOCK: HP 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 0.4340909090909091.