1.   A structural appraisal of the building identified a number of potentially serious defects which could arise in the event of fire.

2.   Boston employers are facing an acute labour shortage with potentially serious consequences for economic growth.

3.   They say that cover is presently provided from Ysbyty Gwynedd at Bangor, but are concerned that delays in getting to Llandudno could prove potentially serious.

4.   Although some of the faults were trivial, a number were potentially serious, including reported failures in nuclear power plants and blackouts on military spy satellite processing systems.

5.   Although some of the faults were trivial, a number were potentially serious, including reported failures in nuclear power plants.

6.   Anti-smoking legislation hit a potentially serious snag in the Senate Thursday, and further action was postponed until next month.

7.   Because birth control pills can have potentially serious side effects, they must be prescribed by a doctor who can determine if they are safe for you.

8.   Beyond the comic aspects of the search, however, lies a potentially serious problem for the American forces as they feel out their political role here.

9.   A potentially serious standoff between Serb and Albanian forces was just barely averted through the work of observers from the Organization for Security and Cooperation in Europe.

10.   A. It is potentially serious.