Chinua Achebe was a Nigerian novelist. He had a title of chieftain of Igbo tribe and wrote novels about its customs. That was portrayed as sophisticated, passed down through generations.
Westerners may mistaken them as ‘primitive and savage’. But Achebe showed Igbo people's rich cultural background through his narrations. Igbo proverbs, ‘the art of conversation", were frequently quoted in his novels.
The non-violent nature of Igbo was demonstrated by events like the peaceful agreement with the Mbaino tribe during a murder in Igbo by a Mbaino man.
 
        
                    
             
        
        
        
Answer:
I believe this is the definition for example clues.
Explanation:
We often hear of context clues, but authors can also employ example clues. Example clues can be found when authors give an example that facilitates the  understanding of an unfamiliar word by the reader. A regular context clue would not offer an example. Example clues tend to use the terms "such as", "for instance", "for example", "to illustrate", among others.
 
        
             
        
        
        
The excerpt from “Ballad of Birmingham” by Dudley Randall which is an example of sensory imagery is <u>“brushed her night-dark hair.”</u>
“Ballad of Birmingham” by Dudley Randall is a poem which is a conversation between a mother and daughter about a 'Freedom March' which will be happening on the streets of Birmingham. The daughter wishes to attend the march but her mother restricts her to go there and tells her about the dangers of going there. Instead, she sends her daughter to Church which is a safe place. But unfortunately, a bombing happens in the church in which the mother finds her daughter dead. She falls prey to the act of racism. 
The line“brushed her night-dark hair” appeals to both the sense of touch and sight in the poem.