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 STATES A     Z[= pima   (l 1417950  o SCRIBN. EX BEAL ARIZONA Kud>   C. G. PRINGLE G #    POALES s[?     MUHLENBERGIA    Orx 1884-09-06   mesas near tucson 3   3 s.n.     U2 porteri    c  muhlenbergia porteri
{"catalogNumber": "1417950", "order": "Poales", "family": "", "scientificName": "Muhlenbergia porteri", "scientificNameAuthorship": "Scribn. ex Beal", "genus": "Muhlenbergia", "subgenus": "", "specificEpithet": "porteri", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "C. G. Pringle", "recordNumber": "s.n.", "verbatimEventDate": "1884-09-06", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arizona", "county": "Pima", "municipality": "", "locality": "Mesas near Tucson", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}