If there exists ruletext reading “As a Daily Action, if the Building has not collapsed, a Engineer may Build” then reword it as follows:

As a Daily Action, if the Building is not Collapsed, a Engineer may Build

If there exists ruletext reading “If Building Stability is 0 or lower, the building has collapsed!  If the building has collapsed, then any Engineer can Move On.” then reword it as follows:

If Building Stability is 0 or lower, then the Building is Collapsed; otherwise, the Building is not Collapsed. While the Building is Collapsed, any Engineer can Move On.