kutyuenzi lujvo

x₁ is the empty utterance/text

lo kutyuenzi = lu li'u. See also kunti, uenzi, kutpoi, kutysetmima, kutlerpoi, kutydza, zai'o

jbovlaste

In notes:

kutlerpoi: x₁ is the empty character string
kutpoi: x₁ is the empty array/sequence
kutydza: x₁ is the null value/argument
kutygunma: x₁ is the empty mass/aggregate
kutysetmima: x₁ is the empty set