Match the sentence to the category of ambiguity. 1: -I saw her duck (I saw a duck belonging to her, or I saw her lower her head) -きのう友達（ともだち）と夜ごはんを食べた（a friend or friends) 2: -He is a doctor (‘medical doctor’ or ‘Ph.D’) -力が足りない（lack of ability or lack of strength) 3: -How interesting! (could be used ironically) -ちょっと難（むずか）しいですね (could mean ‘it’s bit difficult’ or ‘it’s impossible’) 4: -entree (‘ appetizer’ in Australian English, ‘the main course’ in American English) -切れる　(could mean ‘go into a rage/ go crazy ‘ in young people’s utterance)