I’m not sure why you are trying to pass the conditions array as the s parameter of your DashedSentence Controller elements.
The conditions array contains references to labeled trials, and its cells are therefore meant to feature in the Sequence command, as in my example.
If you take a look at my example project, I simply use a single Button element in the trials I generate. That’s the part where you should use a Controller element with DashedSentence if you need to use it, and presumably reference row.sentence (or, to be consistent with your example, variable.sentence) as the s parameter. You can read more about how the Template command works here, and more about the Sequence command here
Jeremy