Introduce greater sanity into RDFa checking.
Introduce greater sanity into RDFa checking.

tripu/validator,YOTOV-LIMITED/validator,validator/validator,sammuelyee/validator,YOTOV-LIMITED/validator,sammuelyee/validator,validator/validator,validator/validator,validator/validator,tripu/validator,sammuelyee/validator,takenspc/validator,YOTOV-LIMITED/validator,takenspc/validator,tripu/validator,tripu/validator,sammuelyee/validator,takenspc/validator,takenspc/validator,YOTOV-LIMITED/validator,validator/validator,YOTOV-LIMITED/validator,tripu/validator,takenspc/validator,sammuelyee/validator