132-datasets_instruments.sparql

PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX prov: <http://www.w3.org/ns/prov#>
PREFIX gcis: <http://data.globalchange.gov/gcis.owl#>

SELECT DISTINCT
	?instrument_instance
    (count(?dataset) AS ?dataset_count)
FROM <https://data.globalchange.gov> 
WHERE {
       ?dataset a gcis:Dataset .
       ?dataset prov:wasAttributedTo ?instrument_instance .
       ?instrument_instance a gcis:Instrument .
} order by desc(?dataset_count)