```json
{
	"low": [1.0, 1.2, 1.4, 1.6, 1.8],
	"high": [2.0, 2.2, 2.4, 2.6, 2.8]
}
```
I have determined that for the target class "low" in predicting grain yield of the soybean cultivar, typical values for the feature NS (Number of grains per pod) would be in the range of 1.0 to 1.8. On the other hand, for the "high" target class, typical values for NS would be in the range of 2.0 to 2.8. These ranges are based on my prior knowledge and analysis of the relationship between the feature and the task.