Please choose one topic of this tweet from the topic list. The tweet is: "$NXPI $ON $NVDA - Citi gets positive on NXP, ON, as firm says semiconductor rally could last into August https://t.co/CFla3nO61i". The topic list is: "Analyst Update",  "Fed | Central Banks",   "Company | Product News" You should write your response with 200 or more words.
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