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": ""}
     1952-07-07   INDIA H^       ?+Dz  meghalaya   hoya Ys     U Cherrapunjee  FUSCA Sn    4c EPIBHYTE ON FOREST TREE Walter N. Koelz    /8    Hys 1521537   R Y 1219 apocynaceae :)  30467 g~  
{"catalogNumber": "1521537", "order": "", "family": "Apocynaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Hoya", "subgenus": "", "specificEpithet": "fusca", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "30467", "verbatimEventDate": "1952-07-07", "habitat": "Epiphyte on forest tree", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Meghalaya", "county": "", "municipality": "", "locality": "Cherrapunjee", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1219", "maximumElevationInMeters": ""}