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": ""}
 ha:  l.   Rp RUBIACEAE  2DPu meghalaya  x cordifolia  y,RJ IN THICKET  ZeB]$ EAST KHASI HILLS   :5 ,( 1952-06-25     -BY I walter n. koelz     1536685 (q`7   RnmW ruba cordifolia  /P#.M Rubia  INDIA  q   30346  $     
{"catalogNumber": "1536685", "order": "", "family": "Rubiaceae", "scientificName": "Rubia cordifolia", "scientificNameAuthorship": "L.", "genus": "Rubia", "subgenus": "", "specificEpithet": "cordifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "30346", "verbatimEventDate": "1952-06-25", "habitat": "In thicket", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Meghalaya", "county": "East Khasi Hills", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}