def build_condition(bcstr):
    """decode build condition"""
    if bcstr == 'BC':
        bcstr += ' (as-built)'
    elif bcstr == 'CC':
        bcstr += ' (as-current)'
    elif bcstr == 'RC':
        bcstr += ' (as-repaired)'
    elif bcstr == 'OT':
        bcstr += ' (other)'
    else:
        bcstr += ' (unknown)'
    return bcstr
