1a entails 1b
1a. I missed the bus.
1b. I didn’t get on the bus.
2a presupposes 2b
2a. I’m looking for my missing dog.
2b. I have a dog.
The presupposition trigger is “my”.
3a presupposes 3b
3a. Maria knows that Vanessa stole her pink headphones.
3b. Vanessa stole Maria’s pink headphones.
The presupposition trigger is “knows”.


