f | 1 | [Path 1]: | f | 1 | [Path 1]:
| 2 | 0: Start of execution: Beginning Search |  | 2 | 0: Start of execution: Beginning Search
| 3 | 1: Searching: query |  | 3 | 1: Searching: query
| 4 | 2: Searching: nephew(jeff, stephen) |  | 4 | 2: Searching: nephew(jeff, stephen)
| 5 | 3: Searching: parent(Candidate Variable_0, jeff) |  | 5 | 3: Searching: parent(Candidate Variable_0, jeff)
| 6 | 4: Found: parent(ruth, jeff) |  | 6 | 4: Found: parent(ruth, jeff)
| 7 | 5: Searching: sibling(ruth, stephen) |  | 7 | 5: Searching: sibling(ruth, stephen)
| 8 | 6: Fail: sibling(ruth, stephen) | {'Result': 'Search Failed'} |  | 8 | 6: Fail: sibling(ruth, stephen) | {'Result': 'Search Failed'}
n | 9 | 7: Redo: parent(Candidate Variable_0, annie) | n | 9 | 7: Fail: nephew(jeff, stephen) | {'Result': 'Search Failed'}
|  |  |  | 10 | 8: Fail: query | {'Result': 'Search Failed'}
| 10 |  |  | 11 |
t | 11 | 8: Found: parent(stephen, annie) | t |  |
| 12 | 9: Searching: sibling(stephen, jeff) |  |  |
| 13 | 10: Fail: sibling(stephen, jeff) | {'Result': 'Search Failed'} |  |  |
| 14 | 11: Redo: sibling(ruth, cristina) |  |  |
| 15 |  |  |  |
| 16 | 12: Found: sibling(ruth, cristina) |  |  |
| 17 | 13: Searching: parent(cristina, jeff) |  |  |
| 18 | 14: Fail: parent(cristina, jeff) | {'Result': 'Search Failed'} |  |  |
| 19 | 15: Redo: sibling(christian, ruth) |  |  |
| 20 |  |  |  |
| 21 | 16: Found: sibling(christian, ruth) |  |  |
| 22 | 17: Searching: parent(christian, jeff) |  |  |
| 23 | 18: Fail: parent(christian, jeff) | {'Result': 'Search Failed'} |  |  |
| 24 | 19: Fail: nephew(jeff, stephen) | {'Result': 'Search Failed'} |  |  |
| 25 | 20: Fail: query | {'Result': 'Search Failed'} |  |  |

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