sentence: With the three-cylinder compound arrangement , the LP cranks were either set at 90 ° with the HP one at 135 ° to the other two , or in some cases all three cranks were set at 120 ° .
question: how was something arranged _ _ _ ?
answers: in some cases all three cranks were set at 120 ° the LP cranks were either set at 90 ° with the HP one at 135 ° to the other two