Classify the given a piece of financial news into three classes: positive, negative, and neutral. Output must be 'positive', 'negative', or 'neutral'.

[EX Q]: Shares in Royal and Sun Alliance continued to slide back from a 12-month high of 172p last month , after a potential suitor ruled itself out of a takeover bid .
[EX A]: negative

[EX Q]: The most interesting export markets will be Russia , the Baltic countries and Scandinavia .
[EX A]: neutral

[EX Q]: Changes to the as-built models from the design were communicated to the subcontractors to accommodate them into the steel and GRC glass reinforced concrete fabrication process .
[EX A]:
neutral