Default object announcement. We display this announcement whenever the player leaves out a required object from a command, but the parser is able to infer which object they must have meant. The parser infers that an object was intended when a verb requires an object that the player didn't specify, and there's only one logical choice for the missing object. We announce our assumption to put it out in the open, to ensure that the player is immediately alerted if they had something else in mind.

In English, this type of announcement conventionally consists of simply the name of the assumed object, in parenthesis and on a line by itself. In cases where the object role involves a prepositional phrase in the verb structure, we generally show the preposition before the object name. This format usually reads intuitively, by combining with the text just above of the player's own command:

>open
(the door>
You try opening the door, but it seems to be locked. *.
>unlock the door (with the key)

class DefaultObjectAnnouncement :   CommandAnnouncement