def parse_rule(rule):
    """Parse all the components of cql rule

    Args:
        rule (str): cql rule

    Returns:
        str: token info, index info, operator of the rule and conclusion tag
    """
    part_of_rules = rule.split('\t')
    return part_of_rules[0], part_of_rules[1], part_of_rules[2], part_of_rules[3]