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": ""}
  f4` 1120407    _ TAMAULIPAS poaceae 2   44; 23.9388  .e-~D mexico   1659 x.KVO      (S CHULT.) PILG. k  digitaria cognata _!d4`   .5je1 -97.9066    1931-05-14 jCZss   cognata :9x  Soto la Marina P/VR   El Chamal; Chamal ^mF 
{"catalogNumber": "1120407", "order": "", "family": "Poaceae", "scientificName": "Digitaria cognata", "scientificNameAuthorship": "(Schult.) Pilg.", "genus": "", "subgenus": "", "specificEpithet": "cognata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "1659", "verbatimEventDate": "1931-05-14", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Tamaulipas", "county": "Soto la Marina", "municipality": "", "locality": "El Chamal; Chamal", "decimalLatitude": "23.9388", "decimalLongitude": "-97.9066", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}