Assertion: libretto | /r/HasProperty | caught verdi's imagination
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Source sentences:
text: Then Mocenigo's casual reference to Hugo's successful 1830 drama Hernani as an idea for a libretto caught Verdi's imagination, as seen in a letter which the latter wrote to Mocenigo in early September which expressed concerns about Allan Cameron and the way it had turned out, though noting that this was "the fault of the subject and not the poet".