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": ""}
 1911-09-18 h    digitaria horizontalis -c]Gd    k `U contact um herbarium  POACEAE .   +Vwa# albert s. hitchcock POALES .    8163 8m>      !M6~W horizontalis   1120468 ,c     8) willd.     PANAMA digitaria Tt 
{"catalogNumber": "1120468", "order": "Poales", "family": "Poaceae", "scientificName": "Digitaria horizontalis", "scientificNameAuthorship": "Willd.", "genus": "Digitaria", "subgenus": "", "specificEpithet": "horizontalis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Albert S. Hitchcock", "recordNumber": "8163", "verbatimEventDate": "1911-09-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Panama", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}