Sentence 1: Sam could not find his other shoe. 
 Sentence 3: Sam decided to ask his mother if she knew where it could be 
 Sentence 4:  She reminded him that they have just purchased a puppy recently 
 Sentence 5:  Sam found the puppy with his shoe in the puppy's mouth 
 Option 1: He found it under his bed. 
 Option 2: He searched all over the house for it.