public Builder<T>
			T(final String name, final T value, final Object annotation) {
				return add(new Terminal<>(name, value, annotation));
			}
Add a non-terminal symbol to the expression.

@param name the symbol name
@param value the symbol value
@param annotation the symbol annotation
@return {@code this} builder for method chaining
jenetics.ext/src/main/java/io/jenetics/ext/grammar/Cfg.java