help with game data

https://preview.redd.it/j8cottw1ebfe1.png?width=1561&format=png&auto=webp&s=82266dcce9837f924abad3fc1553766470e07ee0

Name="Toughness" sValue="14,1d3,(t)d1"

anyone know how these strings turn into a stat?

i think it might be something like 14 + 1d3 roll, but not sure what (t)d1 means