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": ""}
   SYMPHYOTRICHUM LAEVE :x    +G0| ARENAC  h1 ASTERACEAE   7:w -83.87653  1250874 jg+O  laeve i      L sec. 4, arenac tp., ca. 2 mi. nw of omer.      ZxW 8376   8 44.07691  (L.) Ã. LÃ¶VE & D. LÃ¶VE #    
{"catalogNumber": "1250874", "order": "", "family": "Asteraceae", "scientificName": "Symphyotrichum laeve", "scientificNameAuthorship": "(L.) \u00c3\u0081. L\u00c3\u00b6ve & D. L\u00c3\u00b6ve", "genus": "", "subgenus": "", "specificEpithet": "laeve", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "8376", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Arenac", "municipality": "", "locality": "sec. 4, Arenac Tp., ca. 2 mi. NW of Omer.", "decimalLatitude": "44.07691", "decimalLongitude": "-83.87653", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}