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": ""}
 2 iv pocynaceae  L. o s   United States ?x   [ 8618  > "Occasional."  asclepias tuberosa l  manistee national forest: norman twp., 500 feet north of p|ne river; ca. 0.56 mi. s of s.r. 55 and 1.88 mi. e. of snyder rd;  l u  asc+lepias 4             MANISTEE .X-2|    Timothy L. Walters vbHY?  
{"catalogNumber": "", "order": "", "family": "Apocynaceae", "scientificName": "Asclepias tuberosa", "scientificNameAuthorship": "L.", "genus": "Asclepias", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Timothy L. Walters", "recordNumber": "8618", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "\"Occasional.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Manistee", "municipality": "", "locality": "Manistee National Forest: Norman Twp., 500 feet north of Pine River; ca. 0.56 mi. s of S.R. 55 and 1.88 mi. E. of Snyder Rd;", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}