def METHOD_NAME(signal, seq_no):
    """Generate brief descriptive text for list view in CityControl"""
    # Note: we do not mention main or category here (too many characters)
    if signal.priority.priority == Priority.PRIORITY_HIGH:
        is_urgent = 'URGENT'
    elif signal.priority.priority == Priority.PRIORITY_NORMAL:
        is_urgent = 'Terugkerend'
    else:
        is_urgent = 'Signalering'
    # Borough (stadsdeel) codes for Sigmax/CityControl are custom and do not
    # match the official ones as used by the municipality of Amsterdam; hence:
    stadsdeel = signal.location.stadsdeel
    stadsdeel_code_sigmax = SIGMAX_STADSDEEL_MAPPING.get(stadsdeel, 'SD--')
    return 'SIA-{}.{} {} {} {}'.format(
        signal.id,
        seq_no,
        is_urgent,
        stadsdeel_code_sigmax,
        signal.location.short_address_text,
    )