| Modality,rows | |
| text->text,447 | |
| text+image+file->text,412 | |
| text+image+video->text,279 | |
| text+image->text,207 | |
| text+image+file+audio+video->text,95 | |
| text+image+audio+video->text,17 | |
| text+file->text,13 | |
| text+image->text+image,12 | |
| Other (groups under 3 rows),8 | |
| text+image+file+video->text,7 | |
| text+image+audio->text,3 | |
| text+image+file->text+image,3 | |
| text+image+file+audio->text,3 | |
| TOTAL,1506 | |