Complex sentence: Although the poem was written before she met Orwell, there are striking similarities between the futuristic vision of O'Shaughnessy's poem and that of Orwell's 1984 including mind control, and personal freedom eradicated by a police state.
Split into simpler sentences: Although the poem was written before she met Orwell, their are striking similarities between the futuristic vision of O'Shaughnessy's poem and that of Orwells 1984. Including mind control, and personal freedom eradicated by a police state.