<s>[INST] Given an abstract text, please determine whether it contains any drug mentions. Provide a 'Yes' or 'No' answer based on the presence or absence of drugs. Abstract Text: Roseburia Intestinalis Generated Butyrate Boosts Anti-Pd-1 Efficacy In Colorectal Cancer By Activating Cytotoxic Cd8+ T Cells[/INST] Yes</s>