 <translate> 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. <yor> Ọkùnrin kan lè ṣàyẹ̀wò ọ̀pá ìdáná tó wà lórí kẹ̀kẹ́, àmọ́ ìyẹn ò túmọ̀ sí pé kò ṣiṣẹ́ dáadáa. Nítorí náà, ìdáhùn náà ni pé kò ṣeé ṣe láti sọ. 