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": ""}
515 E t    RUSSELL G. SCHIPPER f$Yb   $H9 MICHIGAN    SEVERAL, IN LARGE (CA. 2 FEET WIDE & 1.5 FEET TALL) DENSELY CESPITOSE CLUMPS. CULMS FIRM AND PALE AT BASE. ,   +p8k 42.52341  oc  1513055   hU anton a. reznicek -86.01173 5lcH   ,% in several year old seed tree cut in the ca. quercus forest. in full sun and dry sandy lo4m. culms firm and bale at base. rubus flagellaris. CAREX 8%#     BO SWANII   ALLEGAN d<-  allegan state game area, ca. 8 miles w of allegan, ca. 0.8 of a mile s of 116th avenue, on the e side of 48th street.. S6e  UNITED STATES F0>g  (Fernald) Mack.  p   
{"catalogNumber": "1513055", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "(Fernald) Mack.", "genus": "Carex", "subgenus": "", "specificEpithet": "swanii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Russell G. Schipper", "recordNumber": "515", "verbatimEventDate": "", "habitat": "In several year old seed tree cut in the ca. Quercus forest. In full sun and dry sandy loam. Culms firm and pale at base. Rubus flagellaris.", "occurrenceRemarks": "Several, in large (ca. 2 feet wide & 1.5 feet tall) densely cespitose clumps. Culms firm and pale at base.", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Allegan", "municipality": "", "locality": "Allegan State Game Area, ca. 8 miles W of Allegan, ca. 0.8 of a mile S of 116th Avenue, on the E side of 48th Street..", "decimalLatitude": "42.52341", "decimalLongitude": "-86.01173", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}