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 sapindales   G 7 ACER PENSYLVANICUM  luce cb      s A) 46.675647       A T  "Frequent small tree, up to several inches in diameter."  -K b 1969-07-18      LQ. ~aG     ^ United States  
{"catalogNumber": "", "order": "Sapindales", "family": "", "scientificName": "Acer pensylvanicum", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1969-07-18", "habitat": "", "occurrenceRemarks": "\"Frequent small tree, up to several inches in diameter.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Luce", "municipality": "", "locality": "", "decimalLatitude": "46.675647", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}