rokpinsi lujvo

p1 is a chalk/chalk stick made of material p2=r1.

A small stick of "chalk" used for writing on chalkboards. Typically not made of actual chalk. Cf. rokpisterci'a, ciska.

In notes:

rokpisterci'a
c3 is a chalkboard/blackboard/slate where c2 gets written by c1 using chalk c4=p1.