1. Derive the structure for the following sentence starting with its propositional structure step by step. The proposition is called Relevance. The feature set of relevance is Perfect. You have enough tools now to do it:
(1) Judy has seen Howard.
2. Derive the surface structure for the following sentences. The propositional structure and the surface structure with the appropriate indicators is all that is necessary:
(2) It appears that Helen failed the exam.
(3) Greta is apt to buy a pterodactyl.
