The Sentence Diagram Generator visually represents the grammatical structure of the sentence: "Chimamanda, a young and intelligent woman, is a highly regarded author who tells her story about her upbringing in Nigeria."

1. Main Clause: "Chimamanda is a highly regarded author"

   • Subject: "Chimamanda"
   • Predicate: "is a highly regarded author"
     • Complement: "a highly regarded author"

2. Appositive Phrase: "a young and intelligent woman"

   • Modifies the subject "Chimamanda"

3. Relative Clause: "who tells her story about her upbringing in Nigeria"

   • Subject: "who" (referring to "author")
   • Predicate: "tells her story"
     • Direct Object: "her story"
     • Prepositional Phrase: "about her upbringing in Nigeria"
       • Object of the Preposition: "her upbringing"
       • Prepositional Phrase: "in Nigeria"

This structure can be visually represented using the Sentence Diagram Generator to illustrate the relationships between the components of the sentence.