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": ""}
  digitaria =    POALES Q1      w6 VIETNAM   jY longiTflora  poaceae D Y.s        _ (RETZ.) PERS. TONKIN D r    1705788 FqD     L`P[ 1937-11
{"catalogNumber": "1705788", "order": "Poales", "family": "Poaceae", "scientificName": "", "scientificNameAuthorship": "(Retz.) Pers.", "genus": "Digitaria", "subgenus": "", "specificEpithet": "longiflora", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1937-11", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Vietnam", "stateProvince": "Tonkin", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}