21.   The two are related, in that greater competition increases the need for an efficient exchange, said brokerage executives.

22.   Though afterward he said the two were not related.

23.   To say the two are related is a stretch.

24.   Police said the gunmen were Palestinian, and it was unclear whether the two were related.

25.   Police said the motives for the blasts were not known, and they could not determine whether the two were related.

26.   Police said they had no motive for either blast and could not determine if the two were related.

27.   As a colleague pointed out, running an Internet services business is different from running a telecom services, although the two are closely related.

28.   Authorities did not say how the two were related or what led them to the young suspect.

29.   Babaar identified the Jordanians as Humza Azzam and Hufthaifah Azzam, but he said there was no indication that the two were related.