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": ""}
 $P0_a L.    limestone clifffs and ledges along the maitland river, ca. 3-9 km sw. of its mouth at goderich. precise locality: utm grid 461428, map 40 p/12. GP  POALES Nh50       k. 1186526   n Moist prairie-lke cover on thin soil over broad, flat limestone pavement area along rivershore;^ dominated by Andropogon scoparius, Sorghastrum, Muhlenbergia, etc.  Anton A. Reznicek ;   -8/O CANADA    nB Elymus     53b[ SCARCE, SINGLE CLUMP SEEN WITH SPREADING AWN.  9702 D_Kb      tR ONTARIO
{"catalogNumber": "1186526", "order": "Poales", "family": "", "scientificName": "Elymus", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Anton A. Reznicek", "recordNumber": "9702", "verbatimEventDate": "", "habitat": "Moist prairie-like cover on thin soil over broad, flat limestone pavement area along rivershore; dominated by Andropogon scoparius, Sorghastrum, Muhlenbergia, etc.", "occurrenceRemarks": "Scarce, single clump seen with spreading awns.", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "", "municipality": "", "locality": "Limestone clifffs and ledges along the Maitland river, ca. 3-9 km SW of its mouth at Goderich. Precise locality: UTM grid 461428, Map 40 P/12.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}