Based on the given feature description and task, we need to analyze the relationship between the "GB" feature and the presence of chronic heart failure in patients experiencing myocardial infarction complications.

Since the feature is "Presence of an essential hypertension" with different categories such as "there is no essential hypertension", "Stage 2", "Stage 3", and "Stage 1", we can analyze the relationship by looking at the distribution of these categories among patients with and without chronic heart failure.

After conducting the analysis, the dictionary with the respective values for each target class can be generated:

```json
{
	"no": ["there is no essential hypertension", "Stage 2", "Stage 3", "Stage 1"],
	"yes": ["Stage 2", "Stage 3", "Stage 1"]
}
```

In this case, the category "there is no essential hypertension" is present in both target classes, while the categories "Stage 2", "Stage 3", and "Stage 1" are present in both target classes as well.

Please note that if there are additional categories for the "GB" feature that are not mentioned in the task or have no occurrences in the dataset, they should not be included in the dictionary. The focus should be on the categories that have a presence in each target class.