What's the proper method for annotation

How does this image the reader to understand seismographs?

The greatest gift the sumerians gave the world was the invention of writing. the sumerians were a wealthy people. they needed some way to keep track of what they owned. they began drawing pictures. they used a reed as a pen. they drew on soft pieces of clay. the soft clay was then dried in the sun. the tablet became a permanent record. later, the sumerian drawings changed into wedge-shaped symbols. this kind of writing is called cuneiform. by putting symbols together, the sumerians could write entire sentences.

How do the authors develop their claim about the effectiveness of restorative justice through examples involving apartheid and the rwandan genocide? cite evidence from the text in your response.