Add a sample language JSON that will contain a subset of the English language tailored specifically to support specific demonstration and test scenarios.
This will need an approximate subset to produce either US or RP English pronunciation and spelling.
Sample phrases for test should include "The rain in Spain stays mainly on the plain" for testing diphthongs. Other phrases and their words can be used to demonstrate other cases.
Add a sample language JSON that will contain a subset of the English language tailored specifically to support specific demonstration and test scenarios.