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": ""}
    7 < MYRIOPHYLLUM SPICATUM  mqU 1223547     `I Saxifragales     L. nhD    north carolina -;f*    Tyrrell xZ$~  MYRIOPHYLLUM R( jc  haloragaceae rz/    Mitchell S. Alix, Robin W. Scribailo L!]   United St=ates  5=,  
{"catalogNumber": "1223547", "order": "Saxifragales", "family": "Haloragaceae", "scientificName": "Myriophyllum spicatum", "scientificNameAuthorship": "L.", "genus": "Myriophyllum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Mitchell S. Alix, Robin W. Scribailo", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "North Carolina", "county": "Tyrrell", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}