Answer:
Failed state - Government has no control
Oligarchy - Rule by the elite few
Democracy - Rule of the people
Anarchy - No government power
The definition for anarchy and failed state may be swapped because their definitions are quite similar.
Explanation:
Failed state: "A failed state is a political body that has disintegrated to a point where basic conditions and responsibilities of a sovereign government no longer function properly (see also fragile state and state collapse)." -Wikipedia
Oligarchy: "Oligarchy is a form of power structure in which power rests with a small number of people." -Wikipedia
Democracy: "Democracy is a form of government in which the people have the authority to choose their governing legislation." -Wikipedia
Anarchy: "Anarchy is the state of a society being freely constituted without authorities or a governing body." -Wikipedia
The terms should be:
Failed state - Government has no control
Oligarchy - Rule by the elite few
Democracy - Rule of the people
Anarchy - No government power
The definition for anarchy and failed state may be swapped because their definitions are quite similar.