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": ""}
cenchrus x      G United States  A 1211208 42.270872 k:     b CENCHRUS LONGISPINUS  1 1892-08-15 ann arbor VK/(  Washtenaw M7    G -83.726329   L *| LONGISPINUS  POALES ;f f       POACEAE f=   gYsf  (HACK.) FERNALD  ul MICHIGAN  +D-Zq A.J. PIETE*RS 
{"catalogNumber": "1211208", "order": "Poales", "family": "Poaceae", "scientificName": "Cenchrus longispinus", "scientificNameAuthorship": "(Hack.) Fernald", "genus": "Cenchrus", "subgenus": "", "specificEpithet": "longispinus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A.J. Pieters", "recordNumber": "", "verbatimEventDate": "1892-08-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Ann Arbor", "decimalLatitude": "42.270872", "decimalLongitude": "-83.726329", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}