tumsfeni'a lujvo

c1 is/are underground/subterranean beneath ground t1=s1=c2 in frame of reference c3.

In notes:

selzgarivyka'e
x1=k1=r1=z2 is a cryptic organism/stealth object/having the ability to avoid observation/detection by x2=z1=r2=k2 via senses/means (observer) x3=z3 through action/state x4=r3 (event) under conditions x5=z4=k3.