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": ""}
    $ united kingdom   x. SYLVESTRIS  b 1506989  1903-07-07 ys/z(    0` p WALES Conwy 6(<   GPM 51910 6h   MALVA SYLVESTRIS m&u  emma j. cole i/-   &~d l.  eHn! on wall of castle  t/ P s.n.   mc Malvale5 malva  h TZ    conway casle, conway EhW-  malvaceae >k o 
{"catalogNumber": "1506989", "order": "Malvales", "family": "Malvaceae", "scientificName": "Malva sylvestris", "scientificNameAuthorship": "L.", "genus": "Malva", "subgenus": "", "specificEpithet": "sylvestris", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Emma J. Cole", "recordNumber": "s.n.", "verbatimEventDate": "1903-07-07", "habitat": "On wall of castle", "occurrenceRemarks": "GRPM 51910", "associatedTaxa": "", "country": "United Kingdom", "stateProvince": "Wales", "county": "Conwy", "municipality": "", "locality": "Conway Castle, Conway", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}