Based on prior knowledge, a fasting blood sugar (FastingBS) level above 120 mg/dl is considered high, indicating a potential risk for heart disease. Therefore, for the purpose of analyzing the relationship between FastingBS and the presence of heart disease in the coronary angiography, we can use this threshold value to determine the appropriate ranges.

Since we are investigating whether the coronary angiography shows a heart disease or not, we can assume that the target variable is a binary variable: "yes" for heart disease present and "no" for heart disease not present.

To create the requested dictionary, we can manually analyze the relationship between FastingBS and the target variable for typical values.


```json
{
    "no": [70.0, 80.0, 90.0, 100.0, 110.0],
    "yes": [130.0, 140.0, 150.0, 160.0, 170.0]
}
```

In this dictionary, the key "no" represents the target class of "no" (heart disease not present), and the corresponding list contains typical FastingBS values that are likely to indicate a negative diagnosis. Similarly, the key "yes" represents the target class of "yes" (heart disease present), and the corresponding list contains typical FastingBS values that are likely to indicate a positive diagnosis.

Please note that these values are hypothetical and may not represent actual cases. They are provided as examples for the purpose of answering the question.