Complex sentence: The Booth Theatre appeared in "The West Wing" episode "Posse Comitatus" as venue for a fictitious charity performance of "War of the Roses" which President Jed Bartlet attended during the assassination of the Qumari Defence Minister Abdul ibn Shareef.
Split into simpler sentences: The Booth Theatre appeared in "The West Wing" episode "Posse Comitatus". It hosted a fictitious charity performance of "War of the Roses" which an equally fictitious President Bartlet attended during the assassination of the Qumari Defence Minister Abdul ibn Shareef.