li'enrai lujvo

x1=t1=l1 is initial / first / [top leader] in property x2=t2, toward extreme / as xth-most initial x3=t3, in sequence / set x4=t4=l2.

In notes:

crarai
t1=c1 is/are the frontmost among set/range t4 which faces/in-frame-of-reference c3.