 The second division, suppositio communis, is divided into naturalis (natural) and accidentalis (coincidental). Suppositio naturalis is described as the acceptance of a common term for all those things that can share in the common universal nature signified by the term in question—e.g., homo (‘man’) taken by itself by its very nature is able to stand for all men, whether in the past, present or future; suppositio accidentalis is the acceptance of a common term for those things for which the term in question requires an additional term—e.g., in homo est (‘A man is’) the term homo stands for present men, whereas in homo fuit (‘A man has been’) and in homo erit (‘A man will be’) it stands for past men and future men respectively, owing to the additional terms fuit and erit.