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I've added this (ballads:normalizedFirstLine) to the generated RDF, please add to the spec. We should probably add normalized records for the other properties as well, although we don't have this data here.

We have Objects entitled both Item and SheetItem. I believe this is a redundancy, and that SheetItem is the preferred tem.

I note that all (?) individual Manifestations (e.g. IllustrationElement, BalladTextManifestion have a SameAs : SheetManifestation relationship. SameAs should only refer to another Manifestation of the same class, I think. This does not alter the hierachy of xElement : isDerivativeOf: ySheetManifestation.

Should SheetItemImage be linked to SheetItem, SheetItemImage, and Collection?

If so, we will need to define properties e.g. isDigitalImageOf, hasDigitalImage.

IllustrationElement does not formPartOf BalladTextManifestation, as it seems to on the diagram, but only SheetManifestation. The same is true of OrnamentElement.

I note that all (?) individual Manifestations (e.g. IllustrationElement, BalladTextManifestion have a SameAs : SheetManifestation relationship. SameAs should only refer to another Manifestation of the same class, I think. This does not alter the hierachy of xElement : isDerivativeOf: ySheetManifestation.

The RDF/XML files containing ballads data need to have the following characters escaped in the text values, for the document to be valid.

& ----- & amp; 
"  ----- & quot;
< ----- & lt;
> ----- & gt;
'  ----- & apos;

The following page should display data contained in a RDF/XML file, however, there is a parse error due to the "&" character:

http://sparql.captsolo.net/browser/browser.py?url=http%3A%2F%2Fballads.bodleian.ox.ac.uk%2Fid%2Felement%2Fefeffc93-915b-48f9-9988-fc2820228251

Value causing error:
ballads:imprintPrinted by John Goldie & Co., 377, High Street/ballads:imprint

Validation of RDF:
http://www.w3.org/RDF/Validator/ARPServlet?PARSE=Parse+URI%3A+&TRIPLES_AND_GRAPH=PRINT_TRIPLES&FORMAT=PNG_EMBED&URI=http%3A//ballads.bodleian.ox.ac.uk/id/element/efeffc93-915b-48f9-9988-fc2820228251

duplication - suggest to remove hasLocation

Two events, "EntranceStationersRegister" and "PerformanceEvent" have a property "hasSheetManifestationParticipant". This should be deleted and replaced with "hasBalladTextWorkParticipant" with a range of "BalladTextWork".

I have updated the balladspec.rdf file

"formsPartOf" is property of Collection that points to a Collection instance. Collection also has the property "partOfCollection" that points to a PartOfCollectionEvent instance.

Suggestion to remove "formstPartOf" property as this should be defined in an event.

Expression is unspecified.

From the diagram - we have both SheetItemPrintingEvent and PrintingEvent for a Ballad Sheet. I suggest we delete the latter.

the following triple exists in balladspec

musicalScoreElement --> embodimentOf --> TuneWork

Is this correct?
embodimentOf is a FRBR property that links a manifestation and an expression
realizationOf is a FRBR property that links an expression and a work

Should we use one of these properties and define it for use in balladspec, or should a new property be used to link a manifestation and a work?

Example would be embodiment. Requirement to link work to manifestation

I have exported the IllustrationElements with ballads:numberOnSheet (which is also used for BalladTextManifestation). Can this be added as a property to IllustrationElement and the description updated to reflect the additional usage?