Detailed Instructions: In this task, you're given four sentences of a story written in natural language. The given story is not complete and your job is to complete the story by selecting one of the sentence choices from (A) and (B), such that the story sounds fully coherent.
Problem:Sentence1: Anna was going to have a baby sibling. Sentence2: Her mom went into the hospital and Anna was hopeful. Sentence3: She really wanted a little sister, but not a brother! Sentence4: When her mom returned home with the baby, Anna was overjoyed. 
 (A) The new baby was a boy. (B) The new baby was a girl.
Solution:
B