Chapter 4: Kinds
4.3. Plural assertions

As the following examples show, sentences can make several assertions at once by using the plural. Suppose we have defined a kind called "high-up fixture", for instance like so:

A high-up fixture is a kind of thing. A high-up fixture is usually fixed in place.

Then the following sentence creates two such objects and puts them in their place:

The high shelf and the skylight window are high-up fixtures in the Lumber Room.

since it is equivalent to saying:

The high shelf is a high-up fixture. The skylight window is a high-up fixture. The high shelf is in the Lumber Room. The skylight window is in the Lumber Room.

Such plurals are allowed in almost any context, and we could even define two kinds at once:

Bucket and basket are kinds of container.

Inform constructs plurals by a fairly primitive rule, and English is so irregular a language that a more complicated rule would probably not be very much better. We sometimes need to intervene:

An ox is a kind of animal. The plural of ox is oxen.

We are allowed to define more than one plural for the same singular text, and for the names of things, rooms or kinds, all alternative versions will be used interchangeably. (For instance, Inform defines both "people" and "persons" as plurals of "person".)


For the time being, please avoid syllepsis such as "Darcy is wearing a hat and carrying a fishing rod.", where the "and" couples together prepositions (or verbs) rather than nouns.


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*** Example  Get Me to the Church on Time
Using kinds of clothing to prevent the player from wearing several pairs of trousers at the same time.

RB


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