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": ""}
 : 4g ecil billington     flood plain _ >     Yd |C Michigan  UNITED STATES $c   `-k var.  qj (DC.) CRONQUIST  glabrtum ^+X  1258340 4p03   Asterales N    C5 xanthium  qY=.+ -86.624924    STRUMARIUM At/S      `f U 41.834808
{"catalogNumber": "1258340", "order": "Asterales", "family": "", "scientificName": "", "scientificNameAuthorship": "(DC.) Cronquist", "genus": "Xanthium", "subgenus": "", "specificEpithet": "strumarium", "verbatimTaxonRank": "var.", "infraspecificEpithet": "glabratum", "identifiedBy": "", "recordedBy": "Cecil Billington", "recordNumber": "", "verbatimEventDate": "", "habitat": "Flood plain", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "41.834808", "decimalLongitude": "-86.624924", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}