TABLE 1.
Structure of GRID corpus sentences.
| Command | Color* | Preposition | Letter* | Digit* | Adverb |
| Bin | Blue | At | a–z | 0–9 | Again |
| Lay | Green | By | Except | Now | |
| Place | Red | In | w | Soon | |
| Set | White | With | Please |
The keywords on which participants were scored are indicated by an asterisk (*).