Based on prior knowledge, the appropriate range for a normal fasting blood sugar (FastingBS) is typically considered to be below 100 mg/dl. Therefore, a value of 0 for FastingBS can be used to represent a normal result, while a value of 1 can be used to represent a fasting blood sugar level above 120 mg/dl.

To analyze the relationship between FastingBS and the presence of heart disease as shown in the coronary angiography, we can examine the distribution of FastingBS values for each target class (yes: heart disease present, no: heart disease not present). 

Here is the dictionary with the required details:

```json
{
    "no": [0.0, 0.0, 0.0, 0.0, 0.0], 
    "yes": [1.0, 1.0, 1.0, 1.0, 1.0]
}
```

In this case, for the target class "no" (heart disease not present), all the FastingBS values are 0.0, indicating that the fasting blood sugar level is within the normal range. For the target class "yes" (heart disease present), all the FastingBS values are 1.0, suggesting a fasting blood sugar level above 120 mg/dl, which may be indicative of heart disease.