User talk:Apetrov09703

Welcome to Wikidata, Apetrov09703!

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Best regards! ArthurPSmith (talk) 17:28, 17 August 2020 (UTC)

subclass vs instance

You added "subclass of (P279): work (Q386724)" ot a bunch of articles, eg Development and certification of the IL-96-300 maintenance program (Q105354289).

Please remove them: these are instances of work, not subclasses. So you're messing up the "Work" class hierarchy. Cheers! --Vladimir Alexiev (talk) 09:03, 9 January 2022 (UTC)

• Looks like .... thanks for giving attention Apetrov09703 (talk) 11:18, 9 January 2022 (UTC)

UPD. Corrected Apetrov09703 (talk) 10:47, 3 February 2022 (UTC)

Q29877467

Hi! I see you blanked/trashed Federal Aviation Administration Type Certificate (Q29877467), apparently on the theory that it duplicated type certificate (Q1418690). I wanted to draw three things to your attention.

• When we want to delete things, we don't blank them or give them descriptions like "TO BE DELETED". Instead we report them on Wikidata:Requests for deletion.
• When we find duplicates, we don't delete them, but instead we merge them. This is important because external sites use Wikidata identifiers. See Help:Merge for more details.
• These items are not duplicates as one refers to the US-specific certificate, and the other to the country-independent concept.

Cheers, Bovlb (talk) 22:31, 2 February 2022 (UTC)

OK, thank you for your time and clarification. Regards Apetrov09703 (talk) 10:45, 3 February 2022 (UTC)