This is a rather inelegant way of combining either prepositional phrases, verb phrases, etc. or random story elements as prompts. Two word lists are feeding two displays, one for Verbs, one for Adverbs, adding more display columns in this way is easy, I really wanted one display that concatenated several random items together with one click of a button. Instead I ended up making do with this jury-rigged configuration.
Setting up separate buttons for each column takes advantage of static comparision. One Verb or Adverb etc can stand side by side with its random counterpart indefinitely, so the two, or more, button set-up may actually work-out better than what I was first trying for.