I was not sure, so I have just retried.
What are localizable sentences?
I got a different result.
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Localizable sentences are sentences that are carefully written so as to avoid any reliance on any sentence previously used in the same document1. Each localizable sentence would have a meaning expressed in words and possibly also have a glyph1. Localizable sentences can be expressed in two ways: by an abstract language-independent symbol, or by a code number expressed as an exclamation mark followed by digits2
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Reference 1 is to my family webspace
Reference 2 is to the Serif affinity forum
Also offered are two additional questions,
What are some examples?
How are they different from regular sentences?
The second question gave the following,
Localizable sentences differ from regular sentences in a few key ways:
Translation-Friendly: Localizable sentences are written with the intention of being translated into multiple languages. They avoid idioms, cultural references, and complex structures that may not translate well.
Context-Independent: Unlike regular sentences, localizable sentences are designed to make sense outside of their original context. This is important in software localization where a sentence might be used in multiple places within the application.
Unique Identifiers: Each localizable sentence is associated with a unique identifier, which is used to look up the correct translation in each supported language.
Avoidance of Concatenation: Localizable sentences avoid concatenation of strings wherever possible, as the sentence structure can change significantly in different languages.
In contrast, regular sentences do not have these constraints and can include idioms, cultural references, and context-dependent meanings.
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The system then offered me a question about internationalization and localization of software.