Wikidata:Property proposal/mwnf

Description	identifier of the database of the Museum With No Frontiers (MWNF)
Represents	Museum with No Frontiers (Q17070255)
Data type	URL
Allowed values	`http:\/\/(carpets\|sharinghistory\|www\|glass\|islamicart\|baroqueart)\.museumwnf\.org\/(#\|database\|thematicgallery).{1,200}`
Example 1	Church of St James, Toledo (Q2389665) → http://islamicart.museumwnf.org/database_item.php?id=monument;ISL;es;Mon01;29;en&pageT=N
Example 2	Al-Jawali Mosque (Q4702618) → http://islamicart.museumwnf.org/database_item.php?id=monument;isl;pa;mon01;13;en
Example 3	… → link 3
Example 4	… → link 4
Example 5	… → link 5
Source	http://www.museumwnf.org/database_results.php?cond2=AND&cond3=AND&keyword1=&keyword2=&keyword3=&field1=keyword&field2=keyword&field3=keyword&date_from=&date_to=&searchlanguage=
External links	Use in sister projects: [ar] • [de] • [en] • [es] • [fr] • [he] • [it] • [ja] • [ko] • [nl] • [pl] • [pt] • [ru] • [sv] • [vi] • [zh] • [commons] • [species] • [wd] • [en.wikt] • [fr.wikt].
Number of IDs in source	5311
Expected completeness	is complete for existing Wikidata items only (Q60447462)
Country	Austria (Q40)
Single-value constraint	no
Distinct-values constraint	no
Proposed by	Dominikmatus

@Dominikmatus: asked me to make this proposal.

MWNF is a virtual museum in the form of NPO. With its partners, MWNF develops in situ or virtual exhibitions.

Small details:

The catalog entry types are numerous (physical object (Q223557), building (Q41176), physical location (Q17334923), etc.), so I introduced an url and RegEx that does not allow error: therefore without domain, without subclass, without instance of.
The objects which can be found, by their denomination, with several place, so I specified:
- without distinct values constraint
- without single value constraint.