 
 <prompt> Wetin be variant readings? Based on di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```Wen we dey compare different documents, or "witnesses", of one original text, di differences wey we see dey call variant readings, or simply variants or readings. E no dey always clear which single variant represent di author original work. The process of textual criticism dey try explain how each variant fit don enter di text, either by mistake (duplication or omission) or intention (harmonization or censorship), as scribes or supervisors dey transmit di original author text by copying am. The work of the textual critic, therefore, na to sift through di variants, eliminate those wey dey likely no be original, so as to establish one "critical text", or critical edition, wey dey try best to resemble di original. At di same time, di critical text suppose document variant readings, so that di relationship of existing witnesses to di reconstructed original go dey clear to person wey dey read di critical edition. In establishing di critical text, di textual critic dey consider both "external" evidence (the age, provenance, and affiliation of each witness) and "internal" or "physical" considerations (wetin di author and scribes, or printers, fit likely do).``` 