Determine which relationship represents a function and which relationship does not represent a function. If there is not enough information, select that response.

Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.

We need to be given some relationship information in order to determine if it represents a function or not. Please provide the given relationships so that we can analyze them.