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": ""}
  m R S united states  336 zp    V5 "flowers white with red ends."   1258471 HSG(  -86.442596 k    =hP 44.095292      found on sand, partly vegetated dunems forming a mat. -B 2   IQCJ ARCTOSTAPHYLOS UVA(-URSI        
{"catalogNumber": "1258471", "order": "", "family": "", "scientificName": "Arctostaphylos uva-ursi", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "336", "verbatimEventDate": "", "habitat": "Found on sand, partly vegetated dunes forming a mat.", "occurrenceRemarks": "\"Flowers white with red ends.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "44.095292", "decimalLongitude": "-86.442596", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}