11.   Behavioral health-care companies typically sign contracts to provide mental health and chemical dependency services that may be needed by a group of employees.

12.   A BT spokesman said the two companies have signed a memorandum of understanding to create technology.

13.   A few foreign phone companies have signed agreements to help build phone networks, including Hong Kong Telecommunications Ltd and Singapore Telecommunications Ltd.

14.   A half-dozen major companies have signed Armstrong to endorsement contracts, including Nike, Bristol-Myers Squibb, Yahoo and Visa.

15.   A Nike spokesman, Scott D. Reames, said the company had signed a letter of intent with Trump but had not yet negotiated a lease.

16.   After iGOLF secured an agreement with AOL, the company signed an advertising deal with club maker Callaway Golf.

17.   All three companies have already signed contracts with the government to build their plants.

18.   All four companies have already signed contracts with the government power monopoly, PT Perusahaan Listrik Umum Negara, to build their plants.

19.   Both companies had signed letters of intent for the transactions in June.

20.   But after the two companies signed a letter of intent in May, they became embroiled in disputes over the precise terms of the contract.