Prepositionally modified single noun phrases. These can be used in indirect object responses, so allow for interactions like this:

>unlock door
What do you want to unlock it with?

>with the key

The entire notion of prepositionally qualified noun phrases in interactive indirect object responses is specific to English, so this is implemented in the English module only. However, the general notion of specialized responses to interactive indirect object queries is handled in the language-independent library in some cases, in such a way that the language-specific library can customize the behavior - see TIAction.askIobjResponseProd.

class PrepSingleNounProd :   SingleNounProd