Refactor the unstructured text into a valid JSON dictionary. The key names follow the Darwin Core Archive Standard. If a key lacks content, then insert an empty string. Fill in the following JSON structure as required: {"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}
 U cordifolia   9 East Khasi Hills     6(6P in thicket  j Gentianales 30346 ]>K_q      d, 1952-06-25   C india  Rubiaceae F pZ      1219  j,_ RUBIA CORDIFOLIA   rubia qQb   : 1536685  $I meghalaya  cherrapunjee 4h&1     k!FCy l.
{"catalogNumber": "1536685", "order": "Gentianales", "family": "Rubiaceae", "scientificName": "Rubia cordifolia", "scientificNameAuthorship": "L.", "genus": "Rubia", "subgenus": "", "specificEpithet": "cordifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "30346", "verbatimEventDate": "1952-06-25", "habitat": "In thicket", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Meghalaya", "county": "East Khasi Hills", "municipality": "", "locality": "Cherrapunjee", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1219", "maximumElevationInMeters": ""}