| recommendation letter → IsA → sense | 0.63 | |
| recommendation letter → IsA → correspondence | 0.62 | |
| recommendation letter → IsA → feeling | 0.53 | |
| recommendation letter → IsA → the medium | 0.49 | |
| recommendation letter → IsA → substantial component | 0.45 | |
| recommendation letter → IsA → formal letter | 0.36 |