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": ""}
1502544 y    N?z7C india   !D Rubus walter n. kelz 1     MVV 20905   n%k~K PITHORAGARH  rosales /    V> 1948-06-29    -JU buch.-ham. ex sm.      k6 biflorus  field edges ^d     UM-%% uttarakhand 
{"catalogNumber": "1502544", "order": "Rosales", "family": "", "scientificName": "", "scientificNameAuthorship": "Buch.-Ham. ex Sm.", "genus": "Rubus", "subgenus": "", "specificEpithet": "biflorus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "20905", "verbatimEventDate": "1948-06-29", "habitat": "Field edges", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Uttarakhand", "county": "Pithoragarh", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}