Text structure and organization are fundamental aspects of reading comprehension in English. Analyze the statements below and mark them as true (V) or false (F).

(__)The introduction of a text always includes the main argument, providing detailed examples and conclusions.
(__)Transitional words like "however" and "therefore" help maintain logical flow and coherence in a text.
(__)A narrative text follows a rigid structure of thesis, argumentation, and conclusion.
(__)Topic sentences introduce the main idea of a paragraph and help organize the text's structure.

The correct sequence is: