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": ""}
     7139 _    ONTARIO Q#m   Muskoka +A#)   SU.T Schkuhr ex Willd.  Michael J. Oldham    Poales Z?   1987-05-18 bl=Z  canada g    CAREX t6:.P    UTM 19593, Map 31E/3, Square 17PV19 kuNa   1.5 km N of Milforo Bay on Hwy 118, Muskoka Lks Tp. E   5U  UMBELLATA 
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "", "scientificNameAuthorship": "Schkuhr ex Willd.", "genus": "Carex", "subgenus": "", "specificEpithet": "umbellata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Michael J. Oldham", "recordNumber": "7139", "verbatimEventDate": "1987-05-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Muskoka", "municipality": "", "locality": "1.5 km N of Milford Bay on Hwy 118, Muskoka Lks Tp.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "UTM 195933, Map 31E/3, Square 17PV19", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}