Better cardinality guesser

[dunglas]

Hi @geraintluff

I've created a cardinality extractor for Schema.org's properties: https://github.com/dunglas/php-schema.org-model

It works like yours except that it extracts cardinalities of e-commerce related properties from GoodRelations (in the GoodRelations OWL, cardinalities are included).

I hope this will help!

[geraintluff]

Nice - I'll definitely have a good look at this.