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": ""}
    O MEXICO (j. presl) n. snow      ml =4 1986-03-16 FUSCA  E   POALES QS   $ur 1123655 Leptochloa ]hB L            mostly irrigated agricultural fields |n sandy desert plain. perennial; not common ;J   ]v`r  86-27   
{"catalogNumber": "1123655", "order": "Poales", "family": "", "scientificName": "", "scientificNameAuthorship": "(J. Presl) N. Snow", "genus": "Leptochloa", "subgenus": "", "specificEpithet": "fusca", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "86-27", "verbatimEventDate": "1986-03-16", "habitat": "Mostly irrigated agricultural fields in sandy desert plain. Perennial; not common", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}