Let $D=\{a,b,c\}$ be a domain. Let our language consist of one dyadic predicate $R.$

Consider two different interpretations $($ I and $J)$ of the predicate $R$ on the domain $D.$

Can you find a sentence of predicate logic in the language just consisting of the predicate $R($so no

standard names$)$ which distinguishes the two interpretations $($I and J$)$; i$.$e$.,$ a sentence true according to

one interpretation but not the other? Explain your answer