The sentence: Daisy bought two presents for the baby is a simple sentence with S-V-DO-IO structure. It is a simple sentence because it only contains one subject (Daisy) and one verb phrase (bought two presents for the baby). For further reference, you can see the complete breakdown of the sentence structure below:
S (which stands for Subject): Daisy
V (which stands for Verb): bought
DO (which stands for Direct Object): two presents
IO (which stands for Indirect Object): the baby
