I want to know the answer to the following question:
Antiochus III allied with what king in 203 BC?
All the background I'm provided with is that "The Seleucid Antiochus III had allied with Philip V of Macedon in 203 BC, agreeing that they should jointly conquer the lands of the boy-king of Egypt, Ptolemy V.". Is that enough to answer the question?
Answer: yes