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

Based on the feature description, the TIKL_S_n feature indicates the use of Ticlid in the ICU. For the task of determining whether the patient has chronic heart failure, the feature does not seem directly related. It only provides information about Ticlid usage in the ICU, which may or may not have a connection to chronic heart failure. However, we can assume that the presence of Ticlid usage may contribute to the development of myocardial infarction complications, which is relevant to the task. 

In this case, the TIKL_S_n feature has two possible values: "no" and "yes". The provided dictionary reflects these possible values for each target class. Since we do not have further information about the specific values of TIKL_S_n, the dictionary does not include additional details.