| purpose should be arg? (-) | 
|---|
person: third
tense: past
aspect: ns
voice: passive
form: participle
| We know Verdi's own contribution was mighty impressive since the
 operatic ``Libera me'' was reworked *trace* for the Manzoni
 Requiem, of which he wrote every note himself having learned his
 lesson.
 
 | 
| REL: | reworked | 
| Arg1: | *trace* ->  the operatic `` Libera me '' | 
| ArgM-PNC: | the Manzoni Requiem, of which he wrote
        every note himself having learned his lesson |