Task: Text Completion
Input (English): Sentence1: Sam was stargazing one night. Sentence2: Suddenly he sat bolt upright. Sentence3: He saw a twinkling, moving star! Sentence4: He ran to show it to his dad. 
 (A) His dad laughed because the star was really a jet with lights. (B) Sam's dad was glad his son was interested in geology.
Output (English): A