<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def is_unlikely_node(node):
 """ Short helper for checking unlikely status. If the class or id are in the unlikely list, and there's not also a class/id in the likely list then it might need to be removed. """

    unlikely = check_node_attributes(CLS_UNLIKELY, node, "class", "id")
    maybe = check_node_attributes(CLS_MAYBE, node, "class", "id")

    return bool(unlikely and not maybe and node.tag != "body")