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": ""}
  g@j 1890-10-12  +t Cont4ct UM Herbarium     m`vG` amaranthus spinosus   # AMARANTHUS   /S  amaranthaceae    L.   united states v   George B. Sudworth ?^Y    s.n.  g     b>? x WASHINGTO, D.C. spinosus R56  caryophyllales t V#   1207891 $au;-  
{"catalogNumber": "1207891", "order": "Caryophyllales", "family": "Amaranthaceae", "scientificName": "Amaranthus spinosus", "scientificNameAuthorship": "L.", "genus": "Amaranthus", "subgenus": "", "specificEpithet": "spinosus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "George B. Sudworth", "recordNumber": "s.n.", "verbatimEventDate": "1890-10-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Washington, D.C.", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}