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": ""}
speciosa [  NUTT. W u%   -] CECIL BILLINGTON    bC_Z SOLIDAGO UNITED STATES 8wn1     8v2w  VAR.   88 speciosa  L sandy open ground   q1ts royal oak tp.   g[ 1919-09-07   S0lidago specio5a var. speciosa zab9  [invol. 2.9 mm. -LHS]      Michigan [1r    oW -83.14465  1257639 90  42.48948 Y 
{"catalogNumber": "1257639", "order": "", "family": "", "scientificName": "Solidago speciosa var. speciosa", "scientificNameAuthorship": "Nutt.", "genus": "Solidago", "subgenus": "", "specificEpithet": "speciosa", "verbatimTaxonRank": "var.", "infraspecificEpithet": "speciosa", "identifiedBy": "", "recordedBy": "Cecil Billington", "recordNumber": "", "verbatimEventDate": "1919-09-07", "habitat": "Sandy open ground", "occurrenceRemarks": "[invol. 2.9 mm. -LHS]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Royal Oak Tp.", "decimalLatitude": "42.48948", "decimalLongitude": "-83.14465", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}