f | 1 | [Path 1]: | f | 1 | [Path 1]:
n | 2 | 0: Start of execution | n | 2 | 0: Start of execution: Beginning Search
| 3 | 1: Searching: query |  | 3 | 1: Searching: query
| 4 | 2: Searching: sibling(melba, toni) |  | 4 | 2: Searching: sibling(melba, toni)
n | 5 | 3: Searching: parent(april, melba) | n | 5 | 3: Searching: parent(Candidate Variable_0, melba)
| 6 | 4: Found: parent(april, melba) |  | 6 | 4: Found: parent(april, melba)
| 7 | 5: Searching: parent(april, toni) |  | 7 | 5: Searching: parent(april, toni)
t | 8 | 6: Found: april is the parent of toni | t | 8 | 6: Fail: parent(april, toni) | {'Result': 'Search Failed'}
| 9 | 7: Searching: X\=Y [X=melba,Y=toni] |  | 9 | 7: Fail: sibling(melba, toni) | {'Result': 'Search Failed'}
| 10 | 8: Found: melba\=toni |  | 10 | 8: Fail: query | {'Result': 'Search Failed'}
| 11 | 9: Found: sibling(melba, toni) |  | 11 |
| 12 | 10: Found: query | {'Result': 'truth = True'} |  |  |

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