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": ""}
  16690 `M   ! grayi    C rhynchospora grayi   *N5D> RHYNCHOSPORA   1991-05-18 P#lm   Kunth >           -83.296111 =X M8     4g 1400358 30â° 29' 42" n 83â° 17' 46" w; tr: t1n r10e sec 11 seq, swq, swq m 
{"catalogNumber": "1400358", "order": "", "family": "", "scientificName": "Rhynchospora grayi", "scientificNameAuthorship": "Kunth", "genus": "Rhynchospora", "subgenus": "", "specificEpithet": "grayi", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "16690", "verbatimEventDate": "1991-05-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-83.296111", "verbatimCoordinates": "30\u00c2\u00b0 29' 42\" N 83\u00c2\u00b0 17' 46\" W; TRS: T1N R10E sec 11 SEQ, SWQ, SWQ", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}