lem kai lujvo

x₁ is a stereotypical representative of property x₂

In notes:

sei'inai (comp!): evidential: avoiding stereotypes...
kesri: x₁ (property of x₂) is a stereotype of x₂ (object/set), held by x₃
sei'i (exp!): evidential: stereotypically...
le'elkai: x₁ is/are the thing(s) described/named with property x₂ by the speaker, who thinks this is contextually enough information for the listener to understand what are x₁'s referent(s)