Premise: Kuiper belt . Pluto is the largest and most massive member of the Kuiper belt , and the largest and the second-most-massive known TNO , surpassed only by Eris in the scattered disc . Pluto ( minor-planet designation : 134340 Pluto ) is a dwarf planet in the Kuiper belt , a ring of bodies beyond Neptune . After 1992 , its planethood was questioned following the discovery of several objects of similar size in the Kuiper belt .
Hypothesis: Pluto is a dwarf planet inside the Kuiper belt.
Label: ENTAILMENT