Add AFS Ethnographic Thesaurus to QA

[gracianipicardo]

The PCC Standing Committee on Standards has requested the PCC MAP working group to add this vocabulary to the PCC Sinopia templates.

The AFS Ethnographic Thesaurus (version 2.3) is a vocabulary that can be used to improve access to information about folklore, ethnomusicology, ethnology, and related fields. The American Folklore Society developed the Thesaurus in cooperation with the American Folklife Center of the Library of Congress.

Please perform each task listed below. (Email sf433 @ cornell dot edu with questions):

• Please consult the LD4P2 QA Authority Support Plan (https://github.com/LD4P/qa_server/wiki/Authority-Lookup-Support-Plan-for-Sinopia) to confirm the dataset isn't already being supported.
• Identify the data source: (Include the Data Source Name, its homepage URL, and any relevant API and/or download information to aid in caching.)
• QA has the ability to provide contextual information about an entity during the look-up experience. In order to do so, decisions need to be made about how to index the RDF descriptions of entities in the dataset. Add a new tab and indexing information for the data source to the following spreadsheet: https://docs.google.com/spreadsheets/d/1rPvEoP9iYNkxJ0eWC8gXe3ci7e6mhW0da59xkGhadi0/edit?usp=sharing. (See the existing LCNAF tab in the spreadsheet as an example)

Next steps:

Once the above actions have taken place, a link to a YAML file will be shared with the requestor via a comment in the issue in order to complete Accuracy Test, https://github.com/LD4P/qa_server/wiki/Writing-Tests-for-an-Authority#accuracy-test. Edit directly the YAML file in Github, save. Create a Pull Request to be reviewed. Be sure to including a meaningful commit message (e.g. adding accuracy tests for Authority X).

Context on Accuracy Tests: In order to make sure the QA search behavior (recall and relevancy) are meeting expectations, QA uses YAML to define test parameters. These parameters include the ability to declare for a particular text string searched, the results should include a particular resource (identified by a URI) and what is the maximum position in the results the resource should be found.)