There are a few cases where prefixes overlap: the singulars of Classes I and II (both beginning with ); the singular of Class III and plurals of Classes III and VII (all beginning with ); and the plurals of Classes V and IX (both ). Genuine ambiguity, however, is rare, since even where the noun prefixes are the same, the other prefixes are often different. For example, there can be no confusion between (Class I) 'person' and (Class II) 'seat' in the sentences 'The person is here' and 'The seat is here' because the verb prefixes (Class I) and (Class II) are different, even if the noun prefixes are the same. The same is true with the singular and plural of Class III: 'The dog is eating' vs 'The dogs are eating' (compare English "The sheep is eating" vs "The sheep are eating" where the noun is invariant but the verb distinguishes singular from plural).