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": ""}
1971-10-16 u   _K 20521 POACEAE J c-V       b7gz 1121802  Mexico    L.H. HARVEY I  -92.5969 9Tf     =J6 4 LAS CONCHITAS; CINTALAPA; 12 KM S OF MEXICAN HWY 190 NEAR RIZO DE ORO   $f  (Retz.) Trin.   Denns E. Breedlove & R. Thorne 7=wT      l( Eragrostis viscosa  V HWV viscosa  
{"catalogNumber": "1121802", "order": "", "family": "Poaceae", "scientificName": "Eragrostis viscosa", "scientificNameAuthorship": "(Retz.) Trin.", "genus": "", "subgenus": "", "specificEpithet": "viscosa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "L.H. Harvey", "recordedBy": "Dennis E. Breedlove & R. Thorne", "recordNumber": "20521", "verbatimEventDate": "1971-10-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Las Conchitas; Cintalapa; 12 km S of Mexican hwy 190 near Rizo de Oro", "decimalLatitude": "", "decimalLongitude": "-92.5969", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}