<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: Effectiveness Of 1-L Polyethylene Glycol Plus Ascorbate Versus 4-L Polyethylene Glycol For Colonoscopy Cleansing In Split-Dose:A Multicentre, Randomized, Clinical Trial (Over2019).[/INST] Yes</s>