Timmy is learning two languages at the same time: English and Python. His teacher told him to work with the following string: "London is the capital of Great Britain." Help Timmy! What will be the value of sentence after all the operations in the code below?
sentence = "London is the capital of Great Britain."
sentence = sentence.lower()
sentence.upper()
sentence = sentence.replace("a", "x", 2)
sentence.capitalize()