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": ""}
1990-08-22 F-Sr@   michigan 5z  Hydrocharitaceae (62     r)?J najas flexilis tuscola JznO   Lt; ` ALISMATALES   $4. (WILLD.) ROSTK. & W. L. E. SCHMIDT   % `MQ UNITED STATES -83.50236  /qF   P(Z 1304519 FISH POINT MARSH, T15N R8E, SW 1/4 SEC. 14 <_P,   c /3 submersed in shallow water     =c 370 Barbara J. Madsen uM2  flexilis 5:WGF   wM najas     J 8 43.6975
{"catalogNumber": "1304519", "order": "Alismatales", "family": "Hydrocharitaceae", "scientificName": "Najas flexilis", "scientificNameAuthorship": "(Willd.) Rostk. & W. L. E. Schmidt", "genus": "Najas", "subgenus": "", "specificEpithet": "flexilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Barbara J. Madsen", "recordNumber": "370", "verbatimEventDate": "1990-08-22", "habitat": "submersed in shallow water", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Tuscola", "municipality": "", "locality": "Fish Point Marsh, T15N R8E, sw 1/4 sec. 14", "decimalLatitude": "43.6975", "decimalLongitude": "-83.50236", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}