{"ob_id":73975,"names":[],"terms":[{"ob_id":136,"label":"units","value":"ppm","vocabulary":""},{"ob_id":74964,"label":"var_id","value":"prior_xhdo","vocabulary":""},{"ob_id":74965,"label":"standard_name","value":"column_average_dry_atmosphere_mole_fraction_of_semiheavy_water","vocabulary":""}]}