To determine which relationship the transition word "above" indicates, we need to consider the context in which it is used. The word "above" typically refers to something that has previously been mentioned or discussed, indicating a reference to prior information rather than introducing a contrast, summary, time, or spatial relationship.
Given this understanding, "above" can indicate either a summary of previous points or a reference to earlier content, making it less about contrast, time, or space.
Therefore, the most accurate choice from the given options would be summary.