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": ""}
ambrosia eG     2= 8445          Pellston, vMQY   lB8 along R.R. tracks, with A. coronopifolia and A. artemisiifolia.       Aji asterales    $: Ã INTERGRADIENS 1957-07-22 L|590   R AMBROSIA Ã INTERGRADIENS 
{"catalogNumber": "", "order": "Asterales", "family": "", "scientificName": "Ambrosia \u00c3\u0097 intergradiens", "scientificNameAuthorship": "", "genus": "Ambrosia", "subgenus": "", "specificEpithet": "\u00c3\u0097 intergradiens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "8445", "verbatimEventDate": "1957-07-22", "habitat": "along R.R. tracks, with A. coronopifolia and A. artemisiifolia.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Pellston,", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}