Based on the given feature "lat_im" and the task to determine if the myocardial infarction complications data of this patient show chronic heart failure, we can analyze the relationship between the feature and the target variable.

From the information provided, the feature "lat_im" represents the presence of a lateral myocardial infarction. It is a categorical variable with the following categories:
- QRS has no changes
- There is no infarct in this location
- QRS is like Qr-complex
- QRS is like QS-complex
- QRS is like QR-complex

To determine if the patient has chronic heart failure, we need to identify if the presence of a lateral myocardial infarction (as represented by the feature "lat_im") correlates with chronic heart failure.

Creating a dictionary to summarize the relationship:

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

From the available information, these are the possible values of the "lat_im" feature that correlate with the target class of chronic heart failure ("yes") or the absence of chronic heart failure ("no"). However, please note that if there are values for "lat_im" that are hard to predict or weren't provided, they won't be included in the dictionary.