bug410.m:054: Syntax error at token `. ': expected `,', `)', or operator.
bug410.m:056: Error: clause for predicate `make_titles'/3
bug410.m:056:   without corresponding `:- pred' declaration.
bug410.m:056: Inferred :- pred make_titles(pred(V_1, V_2, V_2), V_2, T3).
bug410.m:056: Inferred :- mode make_titles(di(/* unique */(pred(out, in, out)
bug410.m:056:   is det)), (ground >> not_reached), out(not_reached)).
bug410.m:056: Inferred :- mode make_titles(di(/* unique */(pred(out, in, out)
bug410.m:056:   is det)), di, out(not_reached)).