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| name | page | line | word | word1 |
|---|---|---|---|---|
| book1 | 1 | 1 | the | the |
| book1 | 1 | 2 | a | the |
| book1 | 1 | 3 | time | the |
| book1 | 1 | 4 | a | the |
| book1 | 2 | 1 | an | an |
| book1 | 2 | 2 | tom | an |
| book1 | 2 | 3 | a | an |
| book1 | 3 | 1 | a | a |
| book1 | 3 | 2 | jack | a |
| book1 | 3 | 3 | a | a |
| book1 | 4 | 1 | since | since |
| book1 | 4 | 2 | they | since |
| book1 | 4 | 3 | sam | since |
Warning: Null value is eliminated by an aggregate or other SET operation.