| A- High Probability/Confidence Unknown |
| A1 High Probability/High Confidence |
| A2 High Probability/Moderate Confidence |
| A3 High Probability/Low Confidence |
| A4 High Probability/Very Low Confidence |
| B- Low Probability/Confidence Unknown |
| B1 Low Probability/High Confidence |
| B2 Low Probability/Moderate Confidence |
| B3 Low Probability/Low Confidence |
| B4 Low Probability/Very Low Confidence |
| C- Extremely Low Probability/Confidence Unknown |
| C2 Extemely Low Probability/Moderate Confidence |
| C3 Extremely Low Probability/Low Confidence |
| C4 Extremely Low Probability/Very Low Confidence |
