That's right, JOSF understands your natural language! If you're not familiar with gherkin, the guys at at Cucumber.io [have it all written down] (https://cucumber.io/docs/guides/overview/).
An example of one of our own feature files.
Feature: use Gherkin language to improve Behaviour Driven Development As we are a backer of BDD, JOSF enables us to develop feature files, like this one! Scenario: Reusing step definitions is extremely easy Given I'm at the grocery store When I buy milk And I buy flowers And I buy bread Then the total amount is $6.89 Scenario: Data tables are also implemented Given I'm at the grocery store When I have these items on my list | milk | | flowers | | bread | Then the total amount is $6.89