Based on prior knowledge, it is known that there are no direct biological links between a patient's sex and the presence of heart disease. However, certain heart diseases may have a higher prevalence in one sex compared to the other.

To analyze the relationship between the feature "Sex" and the presence of heart disease, we can compare the distribution of sexes in patients with and without heart disease. This can provide insights into any potential association between sex and the presence of heart disease.

Here is a dictionary representing the relationship between the feature "Sex" and the task "Does the coronary angiography show heart disease?" based on the analysis:

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

Since there is no specific information available about which sex is more likely to have heart disease, the list of "Sex" values for both target classes (yes and no) includes both possible categories: "M" (male) and "F" (female).