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": ""}
1970-08-01 e  michigan |  populus D>bg    "a few large trees"     .E<:% populus deltoides subsp. monilifera    E!H 43.875519  .sZE_ on minnick rd. w off m25 no of harbor beach. (AITON) ECKENW. /s4:     subsp. a;P    ty [ 1244768  iJ deltoides  5 salicaceae John Merkle | Zz0   monilifera VI$W      Z4Y along stream o upper terrace above old glacial lake shore. Sandy clay soil. 
{"catalogNumber": "1244768", "order": "", "family": "Salicaceae", "scientificName": "Populus deltoides subsp. monilifera", "scientificNameAuthorship": "(Aiton) Eckenw.", "genus": "Populus", "subgenus": "", "specificEpithet": "deltoides", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "monilifera", "identifiedBy": "", "recordedBy": "John Merkle", "recordNumber": "", "verbatimEventDate": "1970-08-01", "habitat": "along stream on upper terrace above old glacial lake shore. Sandy clay soil.", "occurrenceRemarks": "\"A few large trees\"", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "On Minnick Rd. w off M25 no of Harbor Beach.", "decimalLatitude": "43.875519", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}