human
TASK: Your task is to answer biomedical questions using the given abstract. Only output yes, no, or maybe as answer.
INPUT: ['To evaluate the success of early catheter removal from men after radical retropubic prostatectomy (RRP) without using either cystography or giving an alpha-blocker.', 'We retrospectively analysed 156 consecutive patients who had RRPs between June 2003 and May 2004 to determine the incidence of urinary retention after early catheter removal, with no cystogram or using an alpha-blocker.', 'The mean age of the men was 60 years and 99% were clinical stage T1 or T2; 74% had their catheters removed 8 days after RRP. The incidence of urinary retention was 1.3%, and of haematuria requiring catheter replacement 2.6%. Two patients (1.3%) developed a bladder neck contracture.'] Is neither alpha-blocker therapy nor cystography required before early catheter removal after radical prostatectomy?
OUTPUT:

agent
yes
TASK: Your task is to answer biomedical questions using the given abstract. Only output yes, no, or maybe as answer.
INPUT: ['To evaluate the success of early catheter removal from men after radical retropubic prostatectomy (RRP) without using either cystography or giving an alpha-blocker.', 'We retrospectively analysed 156 consecutive patients who had RRPs between June 2003 and May 2004 to determine the incidence of urinary retention after early catheter removal, with no cystogram or using an alpha-blocker.', 'The mean age of the men was 60 years and 99% were clinical stage T1 or T2; 74% had their catheters removed 8 days after RRP. The incidence of urinary retention was 1.3%, and of haematuria requiring catheter replacement 2.6%. Two patients (1.3%) developed a bladder neck contracture.'] Is neither alpha-blocker therapy nor cystography required before early catheter removal after radical prostatectomy?
OUTPUT:
