Final answer:
The punctuation used for a Turtle-style triple pattern is a period (.)
Step-by-step explanation:
In the context of Turtle-style triple patterns, the correct punctuation is period (.).
Turtle-style triple patterns are used in the Resource Description Framework (RDF) to represent semantic data. In RDF, triple patterns consist of a subject, predicate, and object, and are used to express relationships between entities.
For example, a Turtle-style triple pattern could be written as: subject predicate object .