id	domain	url
cet-15721	www.cetjournal.it	www.cetjournal.it
cet-15721	www.energypolicy.columbia.edu	www.energypolicy.columbia.edu/wpcontent/uploads/2021/08/greenhydrogen_cgep_report_111122.pdf>
cet-15721	www.energy.gov	www.energy.gov/sites/default/files/2021-08/factsheet-hydrogen-shot-introduction-august2021.pdf>