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": ""}
 Juncus tenuis ?J    UNITED STATES ?    HU juncaceae michigan i72Y   POALES L   Hd 2 INGHAM WILLD. 8@_    JUNCUS W      1947-08-13 N`   v9 t4n, r1w, sec. 36   T/ 290     1648398 `Z   
{"catalogNumber": "1648398", "order": "Poales", "family": "Juncaceae", "scientificName": "Juncus tenuis", "scientificNameAuthorship": "Willd.", "genus": "Juncus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "290", "verbatimEventDate": "1947-08-13", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Ingham", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "T4N, R1W, Sec. 36", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}