(+) I saw the car
(-) I didn't see the car
(?) Did I see the car?
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(+) She found the keys
(-) She didn't find the keys
(?) Did she find the keys
----------------------------------------
(+) Ivra slept early
(-) Ivra didn't sleep early
(?) Did Ivra sleep early?
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(+) Your sister said nice words.
(-) Your sister didn't say nice words.
(?) Did your sister say nice words?
