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": ""}
Cultivated m!x     !,= L.  [P6]6 SAPINDACEAE  s.n. nm  mass/achusetts RLEV   B0XMm AESCULUS HIPPOCASTANUM    vUQ/x williamstown  1515296 2DV   4@ 1854   42.6847 ;    T Unit3d States AESCULUS e6    U4 I1 SAPINDALES       quz7s HIPPOCASTANUM
{"catalogNumber": "1515296", "order": "Sapindales", "family": "Sapindaceae", "scientificName": "Aesculus hippocastanum", "scientificNameAuthorship": "L.", "genus": "Aesculus", "subgenus": "", "specificEpithet": "hippocastanum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "s.n.", "verbatimEventDate": "1854", "habitat": "", "occurrenceRemarks": "Cultivated", "associatedTaxa": "", "country": "United States", "stateProvince": "Massachusetts", "county": "", "municipality": "", "locality": "Williamstown", "decimalLatitude": "42.6847", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}