texmath-0.9.4: tests/writers/mlabeledtrAside2.eqn

matrix{
ccol{ {{a + 1} over 2} above x above 1 }
ccol{ b above {2 over 3 y + 5} above 2 }
ccol{ c above z above 5 }
ccol{ d above d above d }
ccol{ e above e above e }
}