non-terminal
| symbol
| non-terminal | |
| ling. | non-terminal |
| symbol | |
| chem. | signal; signe |
| commun. lab.law. | pictogramme |
| comp. | caractère |
| comp., MS | symbole |
| polit. | symbole |
| symbols | |
| construct. | signes conventionnels |
| |||
| non-terminal | |||
|
non-terminal : 5 phrases in 3 subjects |
| Communications | 3 |
| Grammar | 1 |
| Materials science | 1 |