6.4 Exercises

1. In the text we claimed that our second DCG gives two distinct analyses of ``The witch gave the house-elf to harry''. Explain why.

2. Extend the gap-threading DCH so that it handles the English relative pronouns ``that'' and which, adjectives, and subject-verb agreement.

3. Write a DCG that handles the basic facts of German relative clauses. Your DCG should correctly handle basic facts about agreement, case, and German word order in relative clauses. This is a more demanding exercise.