Final answer:
The question asking about the two words that 'Bart' believes the French say cannot be answered due to a lack of context and relevant information in the given texts. There is no mention of Bart or said words in the provided excerpts.
Step-by-step explanation:
The question seems to be based on a misunderstanding or a mix-up with a piece of literature or a specific context not provided in the given information. None of the texts provided mention a character named Bart or what two words he thinks the French say. The excerpts revolve around different subjects, such as the celebration with shrimps in the first text, the resistance and pride of Haitian natives against the French in the second, translations of Latin words to Anglo-Norman French in the third, and a question about economics involving France's trade decisions in terms of tomatoes and green beans in the fourth.
Without proper context or additional information regarding 'Bart' and the specific two words he believes the French say, this question cannot be accurately answered. If 'Bart' refers to a character from a piece of literature not included in the provided texts, additional information would be required to give a relevant response.