| for photosynthesis | 9 | purpose |
| to grow | 9 | purpose |
| in order to grow | 8 | purpose |
| plant → need → light | 114 |
| plant → require → light | 31 |
| plant → need → some light | 4 |
| negative | neutral | positive |
| 0.096 | 0.676 | 0.228 |
| Raw frequency | 149 |
| Normalized frequency | 0.646 |
| Modifier score | 0.926 |
| Perplexity | 39.839 |