After analyzing the relationship between the feature "IM_PG_P" and the task of determining whether the patient has chronic heart failure, the following information can be inferred:

- If the value of "IM_PG_P" is "no", it suggests that there is no right ventricular myocardial infarction, which may be an indication that the patient does not have chronic heart failure.
- If the value of "IM_PG_P" is "yes", it suggests that there is a right ventricular myocardial infarction, which could potentially be associated with chronic heart failure.

Based on these findings, we can create the corresponding dictionary:

```json
{
	"no": ["no"],
	"yes": ["yes"]
}
```

Note that in this case, since "IM_PG_P" is a binary variable with only two possible categories ("no" and "yes"), we can include them directly in the dictionary.