如何在python中使用SPARQLWrapper处理参数化查询中的字符串

from SPARQLWrapper import SPARQLWrapper, RDFXML, JSON, XML, N3
from rdflib import Graph
sparql = SPARQLWrapper("https://agrovoc.uniroma2.it/sparql")

sparql.setQuery("""
PREFIX skos:  
PREFIX skosxl:  
SELECT *
WHERE { 
       
  ?subject a skos:Concept . 
  ?subject skosxl:prefLabel ?xLab . 
  ?xLab skosxl:literalForm "biomass"@en  .
} """)

sparql.setReturnFormat(JSON)
results = sparql.query().convert()
print(results)

 pip install SPARQLWrapper