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": ""}
 o a 1500030  WALTER N. KOELZ  c2      a Ranunculaceae no data Md   ranunculales . Ax;      shallow h2o l. !    _^t j keshapur      1931-03-01  #2N      INDIA       X- Ranunculus sceleratus 
{"catalogNumber": "1500030", "order": "Ranunculales", "family": "Ranunculaceae", "scientificName": "Ranunculus sceleratus", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "", "verbatimEventDate": "1931-03-01", "habitat": "Shallow H2O", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "", "county": "no data", "municipality": "", "locality": "Keshapur", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}