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": ""}
SUBSP. Ov z     john merkle 1970-07-17 B   Populus 1s   nZ =+ michigan  mJ?DZ at Fish Point area of Saginaw Bay.     < 70-131 1221989 4    DELTOIDES X$    Tuscola s[    Populus deltoides subsp. deltoides h/   R)R# edward g. voss  [f UNITED STATES    s6 SALICACEAE   
{"catalogNumber": "1221989", "order": "", "family": "Salicaceae", "scientificName": "Populus deltoides subsp. deltoides", "scientificNameAuthorship": "", "genus": "Populus", "subgenus": "", "specificEpithet": "deltoides", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "", "identifiedBy": "Edward G. Voss", "recordedBy": "John Merkle", "recordNumber": "70-131", "verbatimEventDate": "1970-07-17", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Tuscola", "municipality": "", "locality": "at Fish Point area of Saginaw Bay.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}