Based on prior knowledge, exercise-induced angina (ExerciseAngina) is a symptom of heart disease. Therefore, it is likely that the presence of exercise-induced angina (Y) would indicate the presence of heart disease, and the absence of exercise-induced angina (N) would indicate the absence of heart disease.

Based on this analysis, the dictionary would be:

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

This indicates that for cases where the target class is "no" (heart disease is not present), the value of ExerciseAngina would be "N" (absence of exercise-induced angina). For cases where the target class is "yes" (heart disease is present), the value of ExerciseAngina would be "Y" (presence of exercise-induced angina).

In this case, since ExerciseAngina is a categorical variable with only two categories, we only include the respective value(s) in the dictionary for each target class.