core schema

["Krzysztof Szewczyk" <KSzewczyk@leroymerlin.pl>]

Can anyone give me an example (core.schema) of entry with uid and 
givenname inside?

I've been playing with this and this irritates me much. My exaple looks as 
follow:

dn: cn=toto toto,ou=it,ou=centrala,o=company name,c=pl 
objectClass: top 
objectClass: person 
objectclass: organizationalPerson 
sn: toto
cn: toto toto 
userPassword: passwdord 
description: somebody 
title: misio 
ou: it 
telephoneNumber: (48 22) 444 4455 55
facsimileTelephoneNumber: 433242 
postalCode: 11-116 
street: Street

I cannot add uid or gn or givenname, why?

Thanks a lot for help