You will be given a definition of a task first, then some input of the task.
This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Passage: The new government drafted and implemented a constitution in 1923 based on a parliamentary system. Saad Zaghlul was popularly elected as Prime Minister of Egypt in 1924. In 1936, the Anglo-Egyptian Treaty was concluded. Continued instability due to remaining British influence and increasing political involvement by the king led to the dissolution of the parliament in a military coup d'etat known as the 1952 Revolution. The Free Officers Movement forced King Farouk to abdicate in support of his son Fuad. British military presence in Egypt lasted until 1954. Question: How long did British military presence remain in Egypt?
Output:
1954