1*e1fe3e4aSElliott Hugheslookup a_to_bc { 2*e1fe3e4aSElliott Hughes sub a by b c; 3*e1fe3e4aSElliott Hughes} a_to_bc; 4*e1fe3e4aSElliott Hughes 5*e1fe3e4aSElliott Hugheslookup b_to_d { 6*e1fe3e4aSElliott Hughes sub b by d; 7*e1fe3e4aSElliott Hughes} b_to_d; 8*e1fe3e4aSElliott Hughes 9*e1fe3e4aSElliott Hughesfeature test { 10*e1fe3e4aSElliott Hughes sub a' lookup a_to_bc lookup b_to_d b; 11*e1fe3e4aSElliott Hughes} test;