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": ""}
  af: Cynodon 193907-17 yG%e   E8 L contact um herbarium  149618 &)^4a      XP/B (L.) PERS.    9 dactylon  !|Rc arizona       W_ paceae COCONINO 79 :   6Y 4081 unted states ZbW   POALES  ]  CYNODON DACTYLON  ]   
{"catalogNumber": "1409618", "order": "Poales", "family": "Poaceae", "scientificName": "Cynodon dactylon", "scientificNameAuthorship": "(L.) Pers.", "genus": "Cynodon", "subgenus": "", "specificEpithet": "dactylon", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "4081", "verbatimEventDate": "1939-07-17", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arizona", "county": "Coconino", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}