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from rdflib import Dataset
def main():
# RDF patch data
add_patch = """
TX .
A _:bn1 <http://example.org/predicate1> "object1" .
A _:bn1 <http://example.org/predicate2> "object2" .
TC .
"""
delete_patch = """
TX .
D _:bn1 <http://example.org/predicate1> "object1" .
TC .
"""
ds = Dataset()
# Apply add patch
ds.parse(data=add_patch, format="patch")
print("After add patch:")
for triple in ds:
print(triple)
# Apply delete patch
ds.parse(data=delete_patch, format="patch")
print("After delete patch:")
for triple in ds:
print(triple)
if __name__ == "__main__":
main()
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