{"ob_id":65496,"names":[],"terms":[{"ob_id":35969,"label":"long_name","value":"S","vocabulary":""},{"ob_id":64470,"label":"units","value":"","vocabulary":""},{"ob_id":67744,"label":"var_id","value":"9","vocabulary":""},{"ob_id":69259,"label":"standard_name","value":"the concentration of total S in PM2.5","vocabulary":""}]}