zulxa'e lujvo

xa1=z1 is a/the left hand of xa2=z2, which faces/in-frame-of-reference z3.

Cf. prityxa'e.

In notes:

prityxa'e
xa1=z1 is a/the right hand of xa2=z2, which faces/in-frame-of-reference z3.
zulxanpre
p1 is a left-hander.