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": ""}
    8Wt L.  W lupulina   ru~ 3048  n Walter N. Koelz  xq8a5 5152   MEDICAGO LUPULINA w$       1933-07-03 `   . zk fabales  <K#  1503847     e LAHAUL AND SPITI  Gundla, Kyelang, Lahul, Kangra, Punjab V> AM  
{"catalogNumber": "1503847", "order": "Fabales", "family": "", "scientificName": "Medicago lupulina", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "lupulina", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "5152", "verbatimEventDate": "1933-07-03", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Lahaul and Spiti", "municipality": "", "locality": "Gundla, Kyelang, Lahul, Kangra, Punjab", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "3048", "maximumElevationInMeters": ""}