def split_comments(comments):
    """Split COMMENTS into flag comments and other comments.  Flag
    comments are those that begin with '#,', e.g. '#,fuzzy'."""
    flags = []
    other = []
    for c in comments:
        if len(c) > 1 and c[1] == ',':
            flags.append(c)
        else:
            other.append(c)
    return flags, other