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Turtles bask on sunlit rocks before slipping quietly into the water.
Turtles bask on sunlit rocks before slipping quietly into the water.
{}
4
null
null
null
null
null
null
null
null
null
null
null
null
null
null
Mismatched socks sometimes end up in laundry baskets after washing.
Mismatched socks sometimes end up in laundry baskets after washing.
{}
4
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
{"balashkevych7": "ivankoval12", "WR2": "XM9", "110 626 5076": "423 291 4685"}
null
8fcb7ad0-0632-43a5-be56-9fae6f73cb21
pii_masking
<html><body><p>balashkevych7, assess for benefits on 04/03/2048 at 10 AM. Living at ZIP WR2, Occupation: Artist. Confirm SSN 110 626 5076, enter OTP 199548.</p></body></html>
balashkevych7||WR2||110 626 5076
<html><body><p>[REDACTED], assess for benefits on 04/03/2048 at 10 AM. Living at ZIP [REDACTED], Occupation: Artist. Confirm SSN [REDACTED], enter OTP 199548.</p></body></html>
194,206
en
1en.jsonl
<html><body><p>ivankoval12, assess for benefits on 04/07/2048 at 10 AM. Living at ZIP XM9, Occupation: Artist. Confirm SSN 423 291 4685, enter OTP 199548.</p></body></html>
gpt-4.1
9
The replacements are well executed: usernames and ZIP codes are swapped with plausible alternatives, and the SSN is replaced with a validly formatted number. The occupation and other non-PII details remain unchanged, preserving semantic meaning. The only minor issue is the unchanged OTP, which may or may not be considered PII depending on context, but typically OTPs are ephemeral and not reused. Overall, the replacement is highly effective and maintains cultural and semantic consistency.
true
The Parliament House in Canberra features a grass-covered roof and hosts Australia’s legislative sessions.
The Parliament House in Canberra features a grass-covered roof and hosts Australia’s legislative sessions.
{}
4
null
null
null
null
null
null
null
null
null
null
null
null
null
null
An emergency fund provides a financial cushion for unexpected expenses.
An emergency fund provides a financial cushion for unexpected expenses.
{}
4
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
{"X889856078343": "Z663715204932", "459-78-4613": "248-65-7921"}
null
ca65ca70-054c-482e-9836-8b8f259badf5
pii_masking
Have any familial relationships been affected? If yes, include your X889856078343 and 459-78-4613.
X889856078343||459-78-4613
Have any familial relationships been affected? If yes, include your [REDACTED] and [REDACTED].
173,147
en
1en.jsonl
Have any familial relationships been affected? If yes, include your Z663715204932 and 248-65-7921.
gpt-4.1
10
The replacements maintain perfect semantic preservation, as the structure and intent of the query remain unchanged. The PII values (an ID and an SSN) are replaced with values of the same format, preserving format validity. There is no cultural inconsistency, as both the original and replacement values are generic and appropriate for the context. Anonymization is effective, with no leakage of original PII. This is an excellent replacement.
true
null
null
{"Colliers": "Silverton", "78758357502": "63219467158", "April/65": "March/65", "Hanson-Aguilar": "Hanson-Cortez"}
null
267f53de-2237-4d00-995c-57373c339db4
pii_masking
MBSR participation approved for Feminine, resident of Colliers, ID: 78758357502, DoB: April/65, managed by Hanson-Aguilar.
Colliers||78758357502||April/65
MBSR participation approved for Feminine, resident of [REDACTED], ID: [REDACTED], DoB: [REDACTED], managed by Hanson-Aguilar.
363,522
en
1en.jsonl
MBSR participation approved for Feminine, resident of Silverton, ID: 63219467158, DoB: March/65, managed by Hanson-Cortez.
gpt-4.1
9
The soft replacements are well-executed: 'Colliers' to 'Silverton' maintains the locality structure, both plausible place names; the ID is replaced with another valid-looking number of the same length; 'April/65' to 'March/65' keeps the date format and similar age; 'Hanson-Aguilar' to 'Hanson-Cortez' preserves a similar cultural background and hyphenated surname structure. All PII is replaced, formats are valid, and semantic meaning is preserved. Minor issue: month change in DoB is a slight semantic drift, but overall, this is an excellent replacement.
true