Based on the feature description and task, we need to analyze the relationship between the presence of an inferior myocardial infarction (inf_im) and the occurrence of chronic heart failure.

To analyze this relationship, we can examine patterns or tendencies that might indicate whether the presence of an inferior myocardial infarction is associated with chronic heart failure in the dataset.

Here is the dictionary with the analysis results:

```json
{
	"no": ["there is no infarct in this location", "QRS is like Qr-complex", "QRS has no changes"], 
	"yes": ["QRS is like QR-complex"]
}
```

In this dataset, the possible values of the feature inf_im for the target class "no" (indicating no chronic heart failure) are:
- "there is no infarct in this location"
- "QRS is like Qr-complex"
- "QRS has no changes"

The feature values "QRS is like QR-complex" are associated with the target class "yes" (indicating chronic heart failure).

Please note that we excluded the value "QRS is like QS-complex" from the dictionary because its relation to chronic heart failure is uncertain based on the analysis of the dataset.

This dictionary summarizes the possible values of the feature inf_im for each target class, providing insights into the relationship between inf_im and chronic heart failure.