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Fair point. I did want to make it quite concise, and might have exaggerated. Figure 2 in this survey gives a good overview of that section -- and my writing was inspired by it.

Thanks for sharing the survey! The concise nature makes more sense now. This information might be hard to find so it's more of a bonus if that could be included:

I'm not sure if that survey or some other paper covers this, but including the current shortcomings/strengths in the four areas of research/tasks of knowledge graphs could be helpful.