A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first because it introduces the main topic about Liszt's talent in music. It does not need other sentences to understand it. It is a general statement about Liszt. Why other lines are not chosen? Paragraph 2 starts with 'He', which is a pronoun and needs context. Paragraph 3 starts with 'A group', which is not general enough. Paragraph 4 starts with 'By the time', which suggests a specific time and needs context. Paragraph 5 starts with 'Soon', which is also not general and needs context.

Concluding sentence: Why this is the last line? This paragraph is the last because it wraps up Liszt's story. It shows the result of all his hard work and talent. It gives a final conclusion to his journey in music.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): This pair connects because the second paragraph gives specific details about Liszt's early music skills. It follows the 'Broader to Specific Strategy' where the first sentence is general and the second gives specific information.
• Pair 2 (Paragraph 2 → Paragraph 3): This pair connects because the second paragraph shows the result of Liszt's early talent. The noblemen's support is a direct response to his skills. This follows the 'Cause and Effect Relationship' rule.
• Pair 3 (Paragraph 3 → Paragraph 4): This pair connects because the support from the noblemen leads to Liszt's recognition as a great pianist. It shows a logical order of events, following the 'Logical Order' rule.
• Pair 4 (Paragraph 4 → Paragraph 5): This pair connects because the recognition at age 12 leads to his later success in Europe. It shows a progression from his early fame to his later achievements, following the 'Chronological Order' rule.