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": ""}
 C. MELL W+     YY Mexico  A/ru SWALLEN  z  a 18.641 -91.811 ~c.    Eo *+ Campeche   ~gqI 1933-04-14 digitaria     qA DIGITARIA DIVERSIFLORA  @Bm DIVERSIFLORA  n ( poaceae  ydlVG 2069    )D 1120436         
{"catalogNumber": "1120436", "order": "", "family": "Poaceae", "scientificName": "Digitaria diversiflora", "scientificNameAuthorship": "Swallen", "genus": "Digitaria", "subgenus": "", "specificEpithet": "diversiflora", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "C. Mell", "recordNumber": "2069", "verbatimEventDate": "1933-04-14", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Campeche", "county": "", "municipality": "", "locality": "", "decimalLatitude": "18.6416", "decimalLongitude": "-91.811", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}