IF |
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| (always ignore) |
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| THEN |
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Earliest and latest | Earliest | Year | Month | Day | Certainty | Qualifier | Value | Unit | Scalar value |
YYYY-MM-DD |
| 1977 | 09 | 05 |
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| 1977-09-05 |
| Latest | Year | Month | Day | Certainty | Qualifier | Value | Unit |
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|
| 2011 | 11 | 16 |
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| 2011-11-16 |
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Earliest only | Earliest | Year | Month | Day | Certainty | Qualifier | Value | Unit | Scalar value |
YYYY-MM-DD |
| 1977 | 09 | 05 |
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| 1977-09-05 |
| Latest | Year | Month | Day | Certainty | Qualifier | Value | Unit |
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| 1977-09-05 |
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Earliest only | Earliest | Year | Month | Day | Certainty | Qualifier | Value | Unit | Scalar value |
YYYY-MM |
| 1977 | 09 |
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| 1977-09-01 |
| Latest | Year | Month | Day | Certainty | Qualifier | Value | Unit |
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| 1977-09-30 |
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Earliest only | Earliest | Year | Month | Day | Certainty | Qualifier | Value | Unit | Scalar value |
YYYY |
| 1977 |
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| 1977-01-01 |
| Latest | Year | Month | Day | Certainty | Qualifier | Value | Unit |
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| 1977-12-31 |
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Earliest only | Earliest | Year | Month | Day | Certainty | Qualifier | Value | Unit | Scalar value |
with single qualifier |
| 1977 | 09 | 05 |
| + | 5 | YEARS | 1977-09-05 |
| Latest | Year | Month | Day | Certainty | Qualifier | Value | Unit |
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| 1982-09-05 |
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Earliest only | Earliest | Year | Month | Day | Certainty | Qualifier | Value | Unit | Scalar value |
with dual qualifier |
| 1977 | 09 | 05 |
| +/- | 5 | YEARS | 1972-09-05 |
USE MINUS | Latest | Year | Month | Day | Certainty | Qualifier | Value | Unit |
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| 1982-09-05 |
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Latest only | Earliest | Year | Month | Day | Certainty | Qualifier | Value | Unit | Scalar value |
YYYY-MM-DD |
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| 2011-11-16 |
| Latest | Year | Month | Day | Certainty | Qualifier | Value | Unit |
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|
| 2011 | 11 | 16 |
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| 2011-11-16 |
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Latest only | Earliest | Year | Month | Day | Certainty | Qualifier | Value | Unit | Scalar value |
YYYY-MM |
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| 2011-11-01 |
| Latest | Year | Month | Day | Certainty | Qualifier | Value | Unit |
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|
| 2011 | 11 |
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| 2011-11-30 |
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Latest only | Earliest | Year | Month | Day | Certainty | Qualifier | Value | Unit | Scalar value |
YYYY |
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| 2011-01-01 |
| Latest | Year | Month | Day | Certainty | Qualifier | Value | Unit |
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| 2011 |
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| 2011-12-31 |
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Latest only | Earliest | Year | Month | Day | Certainty | Qualifier | Value | Unit | Scalar value |
with single qualifier |
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| 2006-11-16 |
| Latest | Year | Month | Day | Certainty | Qualifier | Value | Unit |
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|
| 2011 | 11 | 16 |
| - | 5 | YEARS | 2011-11-16 |
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Latest only | Earliest | Year | Month | Day | Certainty | Qualifier | Value | Unit | Scalar value |
with dual qualifier |
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| 2006-11-16 |
USE ADD | Latest | Year | Month | Day | Certainty | Qualifier | Value | Unit |
|
|
| 2011 | 11 | 16 |
| +/- | 5 | YEARS | 2016-11-16 |
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Earliest and latest | Earliest | Year | Month | Day | Certainty | Qualifier | Value | Unit | Scalar value |
Combination (e.g.) |
| 1977 | 09 | 05 |
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|
|
| 1977-09-05 |
| Latest | Year | Month | Day | Certainty | Qualifier | Value | Unit |
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|
| 2011 |
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| 2011-12-31 |
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Earliest and latest | Earliest | Year | Month | Day | Certainty | Qualifier | Value | Unit | Scalar value |
YYYY-MM-DD |
| 1977 | 09 | 05 |
| - | 5 | DAYS | 1977-08-31 |
with single qualifiers | Latest | Year | Month | Day | Certainty | Qualifier | Value | Unit |
|
| 2011 | 11 | 16 |
| + | 5 | YEARS | 2016-11-16 |
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Earliest and latest | Earliest | Year | Month | Day | Certainty | Qualifier | Value | Unit | Scalar value |
YYYY-MM-DD |
| 1977 | 09 | 05 |
| +/- | 5 | YEARS | 1972-09-05 |
with dual qualifiers | Latest | Year | Month | Day | Certainty | Qualifier | Value | Unit |
|
|
| 2011 | 11 | 16 |
| +/- | 5 | MONTHS | 2012-04-16 |
Notes
- If +/- is used with an earliest date, compute as though it is a -
- If +/- is used with a latest date, compute as though it is a +
- If the year is not present, do not compute
- If the year and day are present but no month, compute as the first of the year (ignore day and any month or day qualifiers)