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": ""}
NITED STATES $ 2C  7491 `c      g,DE CONVOLVULUS  1512852 p6D3g   Fallopia convolvulus C.>      Waste ground. XD2    p 41.7811   Ly POLYGONACEAE  I -85.66639  ( Q2 1958-07-15   7m* & caryophyllbales    hR ST. JOSEPH MICHIGAN w 
{"catalogNumber": "1512852", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Fallopia convolvulus", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "convolvulus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "7491", "verbatimEventDate": "1958-07-15", "habitat": "Waste ground.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "St. Joseph", "municipality": "", "locality": "", "decimalLatitude": "41.7811", "decimalLongitude": "-85.66639", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}