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": ""}
 R$(^ sanguinalis    d+3O 3128  U4eM  POACEAE digitaria 4IZ  Tsinanfu O9sR      LUNG SHAN, 90 LI FROM TSINANFU =V8S  c. y. chiao P0EKk    (v7 SHANDONG    $2 along slope   x  China  E% digitaria sanguinalis  var. ciliaris  130-09-18 g s    fD 1705853  
{"catalogNumber": "1705853", "order": "", "family": "Poaceae", "scientificName": "Digitaria sanguinalis var. ciliaris", "scientificNameAuthorship": "", "genus": "Digitaria", "subgenus": "", "specificEpithet": "sanguinalis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "C. Y. Chiao", "recordNumber": "3128", "verbatimEventDate": "1930-09-18", "habitat": "Along slope", "occurrenceRemarks": "", "associatedTaxa": "", "country": "China", "stateProvince": "Shandong", "county": "Tsinanfu", "municipality": "", "locality": "Lung Shan, 90 li from Tsinanfu", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}