 In the first example, -gka which means 'I/them.two' or and the ergative case suffix 'boy's his'.Taluyagka

Taluyar-gka

Fishtrap-1SG/3PU

'my two fish traps'

tan'gaurlurm taluyai

tan'gaurlur-m taluya -i

boy-ERGATIVE fishtrap-3SG/3PL

'the boy's his fishtraps' = 'the boy's fishtraps'

Yupʼik has switch reference.A switch reference is used in sentences and is an inflection on the verb that tells you if its subject is the same as the subject of another verb.