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": ""}
walter n. koez ] Bg1  Xanthophyllum B   1219 ,r,n  2952 c(^   1505109 X;G      polygalaceae KC(q    @ MEGHALAYA  + FABALES    INDIA /  Xanthophyllum flavescens q     7 east khasi hills ROXB. dFh       ose^ 1952-4-29 
{"catalogNumber": "1505109", "order": "Fabales", "family": "Polygalaceae", "scientificName": "Xanthophyllum flavescens", "scientificNameAuthorship": "Roxb.", "genus": "Xanthophyllum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "29521", "verbatimEventDate": "1952-04-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Meghalaya", "county": "East Khasi Hills", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1219", "maximumElevationInMeters": ""}