There is not discernible difference between them.
Declarative sentences( End in period, like the sentence I am writing now), Exclamatory sentences(End in exclamation mark), Interrogative sentences(End in question mark), Imperative sentences(giving a command), and Conditional sentences(If____________, I would_____________.).
One example of dramatic irony is when the people on the shore see the boat out at sea. They believe that it is a novelty, not that someone might need their help. The people in the boat, see the people on the shore as their rescuers. Both are wrong.
Every time he touches his guitar, it sings. The figurative language that is used is personification.
The compact car is larger