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": ""}
United States xIA    w side of totten lake, s1/2 sec. 32, ellsworth tp, ca. 4 mi. se of luther ;=x  flexuosa  . ?   (L.) Drejer 1) /   4531 |^     AVENELLA FLEXUOSA !~iOf   Michigan .-#X    1957-07-03Nu%   :|  avenella  Cti4t 1212587        u& 1 POALES
{"catalogNumber": "1212587", "order": "Poales", "family": "", "scientificName": "Avenella flexuosa", "scientificNameAuthorship": "(L.) Drejer", "genus": "Avenella", "subgenus": "", "specificEpithet": "flexuosa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "4531", "verbatimEventDate": "1957-07-03", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "W side of Totten Lake, S1/2 sec. 32, Ellsworth Tp, ca. 4 mi. SE of Luther", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}