fepri gismu

x₁ is a/the lung [body-part] of x₂; [metaphor: breathing/respiratory apparatus/bellows].

Also (adjective:) x₁ is pulmonary. See also pambe, vasxu.

jbovlaste

In notes:

pambe: x₁ is a pump/injector [tool/apparatus] pumping/inserting fluid x₂ to x₃ from x₄ by means x₅.
vasxu: x₁ breathes/respires x₂ [gas].
feprykenra: x₁=k₁ is a lung cancer [malignant disease] in x₂=k₂=f₂
cenrini: x₁ is a/the kidney [body-part] of x₂
virnkorona: x₁ is a coronavirus (subfamily Orthocoronavirinae) of species/breed/defining property x₂ capable of infecting [at] x₃.