Definition: In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: What helped Lower Navarre escape from Spanish rule? Passage:In 1479, the Lord of Béarn, Francis Phoebus, inherited the Kingdom of Navarre, across the Pyrenees to the southwest. The two sovereign principalities remained in personal union until their extinction. Béarn went on to be ruled by Henry II of Navarre, who inherited it from his mother. In 1512, the Kingdom of Navarre was almost entirely occupied by Spain; only Lower Navarre, north of the Pyrenees escaped Spanish permanent occupation. The Bearnese monarchs extended the use of Occitan to Navarre after 1512, despite the fact that it was not the vernacular there, where Basque was the tongue of the people. The Estates of Navarre convoked in 1522 (or in 1523, according to other sources) kept records in Occitan, as did the Chancery of Navarre created in 1524. When Henry II revised the Fueros of Navarre in 1530, he had them translated from Castilian into Occitan.


a