Michigan's warning signs regarding ice on bridges are pretty straightforward syntactically; in fact, I can't think of any other way to parse the sentence than the following -
On the other hand, some signs from other states (like the one below) can be parsed differently depending upon which part of speech the word before is playing.
Logically, I would say that the sign is intended to be interpreted with before acting as a subordinating conjunction for a temporal, adverbial clause, as follows -
However, the option is open for before to be interpreted as a preposition telling where the bridge ices.
And this is why I don't sleep at night.
Sign image credits.








Here is a syntactic diagram of the version of the sentence pictured on the right.
The cat used a fork to eat the mouse. (The cat had the fork)
The cat ate the mouse that had a fork in its possesion. (The mouse had the fork)

Or a [[large][family deal]] ?
If the advertised special is for a [[large family] [deal]] as the ad layout suggests, is it for a family that is large in number or a family whose members are large in size?




The word "triangle" is ambiguous when it is unclear on whether it is denoting the shape, the musical instrument or the drafting tool. The word "triangle" is vague when it is referencing the shape because it is indefinite about whether it denotes a scalene, 