 
<translate> Nwoke nwere ike inyocha agbụ ígwè n'ụgbọala mana nke ahụ apụtaghị na ọ naghị arụ ọrụ nke ọma. Ya mere, azịza ya bụ na ọ gaghị ekwe omume ikwu. <eng> A man can examine the chain on a bike but it doesn't mean it was not working correctly. So, the answer is it is not possible to tell. 