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: uncle(stephen, jeff) |  | 4 | 2: Searching: uncle(stephen, jeff)
| 5 | 3: Searching: sibling(stephen, Candidate Variable_0) |  | 5 | 3: Searching: sibling(stephen, Candidate Variable_0)
n | 6 | 4: Found: sibling(stephen, christian) | n | 6 | 4: Fail: sibling(stephen, Candidate Variable_0) | {'Result': 'Search Failed'}
| 7 | 5: Searching: parent(christian, jeff) |  |  |
| 8 | 6: Fail: parent(christian, jeff) | {'Result': 'Search Failed'} |  | 7 | 5: Fail: uncle(stephen, jeff) | {'Result': 'Search Failed'}
| 9 | 7: Backtrack: sibling(stephen, Candidate Variable_0) |  | 8 | 6: Fail: query | {'Result': 'Search Failed'}
| 10 |  |  | 9 |
t | 11 | 8: Found: sibling(stephen, ruth) | t |  |
| 12 | 9: Searching: parent(ruth, jeff) |  |  |
| 13 | 10: Found: parent(ruth, jeff) |  |  |
| 14 | 11: Found: uncle(stephen, jeff) |  |  |
| 15 | 12: Found: query | {'Result': 'truth = True'} |  |  |

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