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": ""}
1501520 p1_   India  sX !  NAGALAND 3c)/n    sCs 1950-09-15    r 8 1524 Walter N. Koelz C,:     astilbe auz.   74O OPEN BANK   RHbSk 26181 oKOHIMA, NAGA HILLS ^X  astilbe =KbKF        kohima  SAXIFRAGACEAE :>   saxifragales  hW1  
{"catalogNumber": "1501520", "order": "Saxifragales", "family": "Saxifragaceae", "scientificName": "Astilbe", "scientificNameAuthorship": "", "genus": "Astilbe", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "26181", "verbatimEventDate": "1950-09-15", "habitat": "Open bank", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Nagaland", "county": "Kohima", "municipality": "", "locality": "Kohima, Naga Hills", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1524", "maximumElevationInMeters": ""}