    Sentence 1: When did the  Grand Mosque in Mecca?         hhabi seized the    Sentence 2: Another motive for the large  scale purchase of arms from the US by Saudi  Arabia was the failure of the Shah during  January 1979 to maintain contro} of Iran, @  fon-Arabic but largely Shiite Muslim  nation, which fell to @ theocratic Islamist  government under the Ayatollah Ruholleh  Khomeini in the wake of the 1979 Iranian  Revolution