import spacy
from spacy.tokens import Span

nlp = spacy.blank("en")

# Define the method
def to_html(span, tag):
    # Wrap the span text in a HTML tag and return it
    return f"<{tag}>{span.text}</{tag}>"


# Register the Span method extension "to_html" with the method to_html
____.____(____, ____=____)

# Process the text and call the to_html method on the span with the tag name "strong"
doc = nlp("Hello world, this is a sentence.")
span = doc[0:2]
print(____)
