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": ""}
1221909 9Y!   AyR  1970-10-04      salicaceae M   l. r     dx[Ry Malpighiales J.E. 3ckenwalder  S 2   T=G( michigan   4K=- UNITED STATES  i]7 John Merke  x balsamifera   9|S Populus OCCASIONAL & SCATTERED kmZv  70-416 6 =    W ON THE MUSKEGON RIV. BOTTOMS ALONG OTTO RD. ON WEST SIDE OF RIVER WEST OF LEOTA.    
{"catalogNumber": "1221909", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "", "scientificNameAuthorship": "L.", "genus": "Populus", "subgenus": "", "specificEpithet": "balsamifera", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "J.E. Eckenwalder", "recordedBy": "John Merkle", "recordNumber": "70-416", "verbatimEventDate": "1970-10-04", "habitat": "Occasional & scattered", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "on the Muskegon Riv. bottoms along Otto Rd. on west side of river west of Leota.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}