We're having a discussion in a forum on rulings in duplicate bridge. In duplicate bridge, each partnership has their own set of bidding system agreements, and there are regulations that specify that certain bids must be alerted, depending on what their meanings are (usually, common agreements are not alerted, while unusual agreements are). In the English Bridge Union, these regulations are in the Blue Book, and it states that the following is not alertable:
[4C1] (c) A pass which does not unexpectedly convey values or specify suit holdings.
The question has come up in our discussion over whether unexpectedly applies only to convey values or also includes specify suit holdings.
I argued that it applies to both, because there are easy ways for them to reword it to indicate otherwise, and also because there are many common situations where a pass implies suit holdings that I don't believe the regulators intended to require an alert.
But another poster suggested that they could simply have repeated unexpectedly before each verb phrase to indicate clearly that both are intended, and he doesn't seem to agree with my extension to the other situations (which hinges on how precisely specify suit holdings should be interpreted).
Is the actual wording truly ambiguous, or should it normally be interpreted one way or the other?