1.   Now, with communism having tumbled from its ideological balance beam, there is nothing to keep the gymnasts apart, no political gulfs, no missile gaps.

2.   The political gulf between Taipei and Beijing means that travelers from Taiwan to mainland China must go through Hong Kong.

3.   The summit pairs two men whose careers reflect the political gulf that separates democratic South Korea and communist North Korea.

4.   Their government is eager to stage regular reunions, but the political gulf with the isolated North has precluded any such arrangement.