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{p} {q} {r} {s} {t} {p,q} {q,r} {r,p} {r,s} {s,q} {s,p} {s,t} {t,r} {t,q} {t,p} {p,q,r}
{q,r,s} {r,s,t} {t,q,r} {s,p,t} {q,t,p}
{r,p,s} {t,q,s} {p,q,r,s} {q,r,s,t}
{p,r,s,t} {q,p,s,t} {p,q,r,t} {p,q,r,s,t} {}
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