11.   It cited a constitutional provision on preference for Filipinos over foreigners in the granting of economic concessions.

12.   Local newspapers and experts speculated that North Korea was trying to win as much economic concession as possible before it allows humanitarian projects to proceed.

13.   The United States, which already has open markets, makes no economic concessions as part of the agreement.

14.   Tribesmen have kidnapped scores of foreigners in the past to win economic concessions from the government, but they have usually freed them safely.

15.   Tribesmen who control large parts of Yemen frequently kidnap foreigners to gain economic concessions from their government.

16.   Tribesmen, who control large parts of Yemen, occasionally kidnap foreigners to try to gain economic concessions from the government.

17.   Tribesmen have kidnapped scores of foreigners to win economic concessions from the government, but they generally have been freed unharmed.

18.   Tribesmen, who control large parts of Yemen, frequently kidnap foreigners to try to gain economic concessions from the government.

19.   Tribesmen have kidnapped scores of foreigners in the past to win economic concessions from the government, but have usually freed them safely.

20.   Tribesmen, who control large parts of Yemen, frequently kidnap foreigners to gain economic concessions from their government.