Annotations: provide useful annotation body

Mainly refers to persons and places.

The following discussion from subugoe/emo/Qviewer!132 should be addressed:

• @schneider210 started a discussion: (+1 comment)

  yes, that's right. I removed them, when we agreed on not having "A person's name" several times over and over again in the list. So, the opposite is needed here, but for the comments only?