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": ""}
Poales zncn  poaceae @~    Q Gi S.N.  ` cornwal|    FpOz PRAECOX   ]%8M engjland  aira praecox pQ/y|    m_q1  united kingdm   .]$ 1703062     4H_5 L. J. MEDLIN 1926-06-18 4   Aira *  Contact UM Herbarium v(kX`      &/yB L. 
{"catalogNumber": "1703062", "order": "Poales", "family": "Poaceae", "scientificName": "Aira praecox", "scientificNameAuthorship": "L.", "genus": "Aira", "subgenus": "", "specificEpithet": "praecox", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "L. J. Medlin", "recordNumber": "s.n.", "verbatimEventDate": "1926-06-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United Kingdom", "stateProvince": "England", "county": "Cornwall", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}