Function parse_en 

pub fn parse_en(text: &str, dims: &[DimensionKind]) -> Vec<Entity>

Convenience function to parse text with default settings for English.

use duckling::{parse_en, Entity, DimensionKind, DimensionValue};

assert_eq!(parse_en("forty-two", &[DimensionKind::Numeral]), vec![Entity {
    body: "forty-two".into(), start: 0, end: 9, latent: None,
    value: DimensionValue::Numeral(42.0),
}]);