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": ""}
 ranunculu acris X+  "flowers double." |   ACRIS$ mw   b>$ Ranunculales      [ MICHIGAN   United States FO7        B T40N-R4W CA. 1 MI. SW OF ST. IGNACE. 3140 po:q   vTr 1990-07-07  @JVS+ DON HENSON    wb pZ l. 
{"catalogNumber": "", "order": "Ranunculales", "family": "", "scientificName": "Ranunculus acris", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "acris", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Don Henson", "recordNumber": "3140", "verbatimEventDate": "1990-07-07", "habitat": "", "occurrenceRemarks": "\"Flowers double.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "T40N-R4W ca. 1 mi. SW of St. Ignace.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}