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 &      digitaria humifusa U9i5  humifusa $]e       Ho germany    f4,a north rhine-westphalia  D s.n. ILLEGIBLE l(>|x     1849 0:W;]    ; contact um herbarium cologne  u/H   sM 1705768     poales POACEAE ~6.~ 
{"catalogNumber": "1705768", "order": "Poales", "family": "Poaceae", "scientificName": "Digitaria humifusa", "scientificNameAuthorship": "", "genus": "Digitaria", "subgenus": "", "specificEpithet": "humifusa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "illegible", "recordNumber": "s.n.", "verbatimEventDate": "1849", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Germany", "stateProvince": "North Rhine-Westphalia", "county": "Cologne", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}