Google quietly announced on the new features page that they now support what they call "selection attributes." Selection attributes require selection of exactly one of several predefined choices.
The example Google gave was around kosher foods, saying you can choose from predefined business descriptions like "No Kosher food," "Some Kosher food," or "Strictly Kosher food."
Google's help document explains:
Selection attributes: These attributes require selection of exactly one of several predefined choices. For example, "Kosher food" is a selection attribute with choices "No Kosher food," "Some kosher food," or "Strictly kosher food." To view all possible choices for each selection attribute, download the attributes reference spreadsheet (instructions below).
Truth is, finding kosher restaurants on Google is not the easiest thing. So maybe this can help with that and other predefined selection attributes.
Forum discussion at Google+.