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": ""}
 7538 Z:  Mexico ,     30   c 21.84902  malpighiales sYm     euphorbiaceae qgs?   n Euphorbia   qzG euphorbia hirta      0f5P san luis potosi 1158003 Au@J4   5Y F l.      ,#r -98.94069
{"catalogNumber": "1158003", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Euphorbia hirta", "scientificNameAuthorship": "L.", "genus": "Euphorbia", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "7538", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "San Luis Potosi", "county": "", "municipality": "", "locality": "", "decimalLatitude": "21.84902", "decimalLongitude": "-98.94069", "verbatimCoordinates": "", "minimumElevationInMeters": "30", "maximumElevationInMeters": ""}