lemkai lujvo

x1 is a stereotypical representative of property x2

In notes:

sei'inai (comp!)
evidential: avoiding stereotypes...
x1 (property of x2) is a stereotype of x2 (object/set), held by x3
sei'i (exp!)
evidential: stereotypically...
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)