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
n | 4 | 2: Searching: uncle(richard, Y) | n | 4 | 2: Searching: uncle(richard, Candidate Variable_0)
| 5 | 3: Searching: parent(Candidate Variable_0, Y) |  | 5 | 3: Searching: parent(Candidate Variable_1, Candidate Variable_0)
| 6 | 4: Found: parent(charles, Y) |  | 6 | 4: Found: parent(frank, charles)
| 7 | 5: Searching: sibling(richard, charles) |  | 7 | 5: Searching: sibling(richard, frank)
| 8 | 6: Fail: sibling(richard, charles) | {'Result': 'Search Failed'} |  | 8 | 6: Fail: sibling(richard, frank) | {'Result': 'Search Failed'}
| 9 | 7: Fail: uncle(richard, Y) | {'Result': 'Search Failed'} |  | 9 | 7: Fail: uncle(richard, Candidate Variable_0) | {'Result': 'Search Failed'}
| 10 | 8: Fail: query | {'Result': 'Search Failed'} |  | 10 | 8: Fail: query | {'Result': 'Search Failed'}
| 11 |  |  | 11 |
t | 12 | Looking for other paths: Redo: parent(Candidate Variable_0, Y) | t |  |
| 13 |  |  |  |
| 14 |  |  |  |
| 15 | [Path 2]: |  |  |
| 16 | 9: Searching: parent(Candidate Variable_0, Y) |  |  |
| 17 | 10: Found: parent(frank, Y) |  |  |
| 18 | 11: Searching: sibling(richard, frank) |  |  |
| 19 | 12: Fail: sibling(richard, frank) | {'Result': 'Search Failed'} |  |  |
| 20 | 13: Fail: uncle(richard, Y) | {'Result': 'Search Failed'} |  |  |
| 21 | 14: Fail: query | {'Result': 'Search Failed'} |  |  |
| 22 |  |  |  |
| 23 | Looking for other paths: Redo: sibling(richard, frank) |  |  |
| 24 |  |  |  |
| 25 |  |  |  |
| 26 | [Path 3]: |  |  |
| 27 | 15: Searching: sibling(richard, frank) |  |  |
| 28 | 16: Fail: sibling(richard, frank) | {'Result': 'Search Failed'} |  |  |
| 29 | 17: Fail: uncle(richard, Y) | {'Result': 'Search Failed'} |  |  |
| 30 | 18: Fail: query | {'Result': 'Search Failed'} |  |  |
| 31 |  |  |  |
| 32 | Looking for other paths: Redo: parent(Candidate Variable_0, Y) |  |  |
| 33 |  |  |  |
| 34 |  |  |  |
| 35 | [Path 4]: |  |  |
| 36 | 19: Searching: parent(Candidate Variable_0, Y) |  |  |
| 37 | 20: Found: parent(frank, Y) |  |  |
| 38 | 21: Searching: sibling(richard, frank) |  |  |
| 39 | 22: Fail: sibling(richard, frank) | {'Result': 'Search Failed'} |  |  |
| 40 | 23: Fail: uncle(richard, Y) | {'Result': 'Search Failed'} |  |  |
| 41 | 24: Fail: query | {'Result': 'Search Failed'} |  |  |
| 42 |  |  |  |
| 43 | Looking for other paths: Redo: sibling(richard, frank) |  |  |
| 44 |  |  |  |
| 45 |  |  |  |
| 46 | [Path 5]: |  |  |
| 47 | 25: Searching: sibling(richard, frank) |  |  |
| 48 | 26: Fail: sibling(richard, frank) | {'Result': 'Search Failed'} |  |  |
| 49 | 27: Fail: uncle(richard, Y) | {'Result': 'Search Failed'} |  |  |
| 50 | 28: Fail: query | {'Result': 'Search Failed'} |  |  |
| 51 |  |  |  |
| 52 | Looking for other paths: Redo: parent(Candidate Variable_0, Y) |  |  |
| 53 |  |  |  |
| 54 |  |  |  |
| 55 | [Path 6]: |  |  |
| 56 | 29: Searching: parent(Candidate Variable_0, Y) |  |  |
| 57 | 30: Found: parent(charles, Y) |  |  |
| 58 | 31: Searching: sibling(richard, charles) |  |  |
| 59 | 32: Fail: sibling(richard, charles) | {'Result': 'Search Failed'} |  |  |
| 60 | 33: Fail: uncle(richard, Y) | {'Result': 'Search Failed'} |  |  |
| 61 | 34: Fail: query | {'Result': 'Search Failed'} |  |  |
| 62 |  |  |  |
| 63 | Looking for other paths: Redo: sibling(richard, charles) |  |  |
| 64 |  |  |  |
| 65 |  |  |  |
| 66 | [Path 7]: |  |  |
| 67 | 35: Searching: sibling(richard, charles) |  |  |
| 68 | 36: Fail: sibling(richard, charles) | {'Result': 'Search Failed'} |  |  |
| 69 | 37: Fail: uncle(richard, Y) | {'Result': 'Search Failed'} |  |  |
| 70 | 38: Fail: query | {'Result': 'Search Failed'} |  |  |
| 71 |  |  |  |
| 72 | Looking for other paths: Redo: parent(Candidate Variable_0, Y) |  |  |
| 73 |  |  |  |
| 74 |  |  |  |
| 75 | [Path 8]: |  |  |
| 76 | 39: Searching: parent(Candidate Variable_0, Y) |  |  |
| 77 | 40: Found: parent(frank, Y) |  |  |
| 78 | 41: Searching: sibling(richard, frank) |  |  |
| 79 | 42: Fail: sibling(richard, frank) | {'Result': 'Search Failed'} |  |  |
| 80 | 43: Fail: uncle(richard, Y) | {'Result': 'Search Failed'} |  |  |
| 81 | 44: Fail: query | {'Result': 'Search Failed'} |  |  |
| 82 |  |  |  |
| 83 | Looking for other paths: Redo: sibling(richard, frank) |  |  |
| 84 |  |  |  |
| 85 |  |  |  |
| 86 | [Path 9]: |  |  |
| 87 | 45: Searching: sibling(richard, frank) |  |  |
| 88 | 46: Fail: sibling(richard, frank) | {'Result': 'Search Failed'} |  |  |
| 89 | 47: Fail: uncle(richard, Y) | {'Result': 'Search Failed'} |  |  |
| 90 | 48: Fail: query | {'Result': 'Search Failed'} |  |  |
| 91 |  |  |  |
| 92 | Looking for other paths: Redo: parent(Candidate Variable_0, Y) |  |  |
| 93 |  |  |  |
| 94 |  |  |  |
| 95 | [Path 10]: |  |  |
| 96 | 49: Searching: parent(Candidate Variable_0, Y) |  |  |
| 97 | 50: Found: parent(charles, Y) |  |  |
| 98 | 51: Searching: sibling(richard, charles) |  |  |
| 99 | 52: Fail: sibling(richard, charles) | {'Result': 'Search Failed'} |  |  |
| 100 | 53: Fail: uncle(richard, Y) | {'Result |  |  |

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