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": ""}
 Q@ POPULUS  var. <  michigan C   ROADSIDE r  7928 .    VdN on m 20, four miles west of midland. 43.612162 r|bXd   ,Aw -84.326871  United States ($eH  1221968 =a  1934-05-15  +   Salicaceae Q)  j.e. eckenwalder 6mfWc  ["(SYN. P. NIVEA)" J. E. ECKENWALDER 1990] /A  R.R.  Dreisbach D     V-W Midland  POPULUS LBA VAR. ALBA h   ALBA s(   i^B malpighiales
{"catalogNumber": "1221968", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Populus alba var. alba", "scientificNameAuthorship": "", "genus": "Populus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "var.", "infraspecificEpithet": "alba", "identifiedBy": "J.E. Eckenwalder", "recordedBy": "R.R. Dreisbach", "recordNumber": "7928", "verbatimEventDate": "1934-05-15", "habitat": "Roadside", "occurrenceRemarks": "[\"(syn. P. nivea)\" J. E. Eckenwalder 1990]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Midland", "municipality": "", "locality": "on M 20, Four miles West of Midland.", "decimalLatitude": "43.612162", "decimalLongitude": "-84.326871", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}