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": ""}
Euphorbia Z> u    t Euphorbia heterophylla  Mark H. Mayfield U   U1a 1154142  1P -98.988(9 L. AW  san luis potosi h8tc      5v 12 mi ne of xilitla, roao to jalpan       `mI | R. Merrill King & R. Tohnson mexico F ;Yj  1961-03-29  b     I wu? 21.5594   
{"catalogNumber": "1154142", "order": "", "family": "", "scientificName": "Euphorbia heterophylla", "scientificNameAuthorship": "L.", "genus": "Euphorbia", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Mark H. Mayfield", "recordedBy": "R. Merrill King & R. Johnson", "recordNumber": "", "verbatimEventDate": "1961-03-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "San Luis Potosi", "county": "", "municipality": "", "locality": "12 mi NE of Xilitla, road to Jalpan", "decimalLatitude": "21.5594", "decimalLongitude": "-98.9889", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}