Behaviors with LINQ syntax using a scenario monad

_Original.cs

public class IntervalFeature : Feature
{
    [Scenario]
    public void Comparison()
    {
        var result =
            from interval in Given("an interval", Interval.WholeStep)
            from smallerInterval in And("a smaller interval", Interval.HalfStep)
            select When("comparing the intervals", left.CompareTo(right));

        Then("the first interval is determined to be larger than the second interval", () => result.Should().Be(1));
    }
}

NoBaseClass.cs

public class IntervalFeature 
{
    [Scenario]
    public void ComparisonUsingLinq()
    {
        var result =
            from left in "Given an interval".Of(Interval.WholeStep)
            from right in "And a smaller interval".Of(Interval.HalfStep)
            select "When comparing the intervals".Do(left.CompareTo(right));

        "Then the first interval is determined to be larger than the second interval".Do(() => result.Should().Be(1));
    }

    [Scenario]
    public void ComparisonWithoutUsingLinq()
    {
        var left = "Given an interval".Given(() => Interval.WholeStep);
        var right = "And a smaller interval".And(() => Interval.HalfStep);

        var result = "When comparing the intervals".When(() => left.CompareTo(right));

        "Then the first interval is determined to be larger than the second interval".Then(() => result.Should().Be(1));
    }
}