merge two ontologies using owlready

I have made 2 ontologies using owlready2 library

list(ontology1.classes())             

[old_dataset_ontology.weather,
 old_dataset_ontology.season]

list(ontology1.individuals())

[old_dataset_ontology.rainy,
 old_dataset_ontology.windy,
 old_dataset_ontology.cold,
 old_dataset_ontology.clouds]


list(ontology2.classes())             

[new_dataset_ontology.weather,
 new_dataset_ontology.season,
 new_dataset_ontology.season1]

list(ontology2.individuals())

[new_dataset_ontology.rainy,
 new_dataset_ontology.windy,
 new_dataset_ontology.cold1]

I want to merge them but I do not find a way with olwready2. There is not something in the documentation. I want just a simple string matching and to delete the duplicate classes and indiv

Any ideas?

from merge two ontologies using owlready