Please tell me the sentiment on "Exxon" in the following sentence: Shell challenges Exxon dominance with 47 billion-pound bid for BG Negative

Please tell me the sentiment on "AAPL" in the following sentence: $AAPL $131 rally mode Positive

Please tell me the sentiment on "IBIO" in the following sentence: $IBIO up 10% in premarket ready for lift off Positive

Please tell me the sentiment on "Rolls-Royce" in the following sentence: Rolls-Royce Wins $9.2 Billion Order From Emirates Airline Positive

Please tell me the sentiment on "SSYS" in the following sentence: $SSYS just re-tested lows . Should rise steadily from here. It hit $81 just 21 trading days ago, and $130.86 on Sept 18. It'll do it again. Positive

Please tell me the sentiment on "Tesco" in the following sentence: Tesco, Asda sales fall as march of the discounters continues: Kantar