kesyske lujvo

x1 is astronomy based on methodology x2.

In notes:

jajycukla
x1 is an accretion disk (in astronomy)
mu'erkraske
x1 is cosmology (in astronomy) based on methodology x2
puvytarga'i
x1 is stellar evolution
tarkesyske
x1 is stellar astronomy based on methodology x2.
zgamuvjga
x1 is the parallax of x2 as seen by x3 who moves to x4 from x5