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": ""}
      corolla white, anthers yellow. sburb a_bout 1 m tall. n     T0)w 547  HD06 Crataegus margaretta   1Ewm united states rosales ~D h      :TPv HILLSDALE    ]C ASHE      
{"catalogNumber": "", "order": "Rosales", "family": "", "scientificName": "Crataegus margaretta", "scientificNameAuthorship": "Ashe", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "547", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "Corolla white, anthers yellow. Shurb about 1 m tall.", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Hillsdale", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}