Looking for list of possible directions to travel – E.g. Left, slight left etc

Hello, I’m a designer working on a journey planner tool.

For the walking parts of the journey, we would like to add an arrow icon to indicate the basic direction of travel for that step. To do that, I need to know all the possible permutations of direction that might be returned by the API.

E.g. Left, Slight left, Sharp left etc.

Is anyone able to give me a list of them, or tell me where I can find it?

Thank you so much!