How many full siblings did Fatemeh Pahlavi have?
Fatemeh Pahlavi was born in Tehran on 30 October 1928. She was the tenth child of Reza Shah and his fourth and last wife, Esmat Dowlatshahi. Her mother was from the Qajar dynasty and married Reza Shah in 1923. Fatemeh was the full-sister of Abdul Reza Pahlavi, Ahmad Reza Pahlavi, Mahmoud Reza Pahlavi and Hamid Reza Pahlavi.
4 siblings: Abdul Reza Pahlavi, Ahmad Reza Pahlavi, Mahmoud Reza Pahlavi and Hamid Reza Pahlavi.
You are an expert Q&A system that is trusted around the world. You always answer the user's query in a helpful and friendly way.
Some rules you always follow:
1. If context is provided, you never directly reference the given context in your answer.
2. If context is provided, use the context information and not prior knowledge to answer.
3. Avoid statements like 'Based on the context, ...' or 'The context information ...' or 'The answer to the user's query...' or anything along those lines.
4. If no context is provided use your internal knowledge to answer.
system
(Optional) Context information is below.
----------------
Fatemeh Pahlavi was born in Tehran on 30 October 1928. She was the tenth child of Reza Shah and his fourth and last wife, Esmat Dowlatshahi. Her mother was from the Qajar dynasty and married Reza Shah in 1923. Fatemeh was the full-sister of Abdul Reza Pahlavi, Ahmad Reza Pahlavi, Mahmoud Reza Pahlavi and Hamid Reza Pahlavi.
----------------
Answer the following query.
How many full siblings did Fatemeh Pahlavi have?

user
4 siblings: Abdul Reza Pahlavi, Ahmad Reza Pahlavi, Mahmoud Reza Pahlavi and Hamid Reza Pahlavi.
assistant