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": ""}
          X 1491  U/0v 1991-07-30  ALONG ROADSIDE VERGE DJ]  Isabella  I c    zCuk_ Ledeb. ON THE EXIT RAMP TO ROSEBUSH ON THE WEST SIDE OF US-27 CA. 6 MI. NORTH OF MT. PLEASANT. ISABELLA TWP. T15N, R4W,& SEC. 11 SW1/4   ;.         Z JUNCEA   
{"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "Ledeb.", "genus": "", "subgenus": "", "specificEpithet": "juncea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "1491", "verbatimEventDate": "1991-07-30", "habitat": "Along roadside verge", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Isabella", "municipality": "", "locality": "on the exit ramp to Rosebush on the west side of US-27 ca. 6 mi. north of Mt. Pleasant. Isabella Twp. T15N, R4W, Sec. 11 SW1/4", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}