Retrieve information about an Orphanet disease and also its description from OMIM according to the term introduced (Federated query)

Endpoints: 
Query: 
SELECT ?label ?identifier_omim ?label_omim ?description_disease WHERE { { SERVICE <$endpoint-2$> { ?s<http://www.w3.org/1999/02/22-rdf-syntax-ns#type><http://bio2rdf.org/orphanet_vocabulary:Disorder> . ?s<http://www.w3.org/2000/01/rdf-schema#label>?label . ?s<http://bio2rdf.org/orphanet_vocabulary:x-omim>?omim . ?omim<http://purl.org/dc/terms/identifier> ?identifier_omim . FILTER regex(?label, "??term", "i") } } { SERVICE <$endpoint-1$> { ?omim<http://www.w3.org/2000/01/rdf-schema#label>?label_omim . ?omim<http://purl.org/dc/terms/description>?description_disease . } } } LIMIT ??number
Statement: 
Retrieve information about an Orphanet disease and also its description from OMIM according to the term introduced $term$ (e.g., alopecia)
A limit of results per page $number$