TASK DEFINITION: In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.
PROBLEM: Sentence1: I walked on campus. Sentence2: While walking across the hallway, the professor greeted me. Sentence3: He introduced himself to the class and went over the syllabus. Sentence4: Afterwards, my mom came to the school in order to pick me up.

SOLUTION: She took me out to dinner since I was hungry.

PROBLEM: Sentence1: Rex loves to go skiing when it is snowing on a weekend day. Sentence2: However, one day his mother calls him to ask him to shovel her porch. Sentence3: Rex decides to skip skiing for the day to help his mother shovel. Sentence4: After a long day of shoveling, Rex decides he hasn't missed skiing.

SOLUTION: He decides to always help his mother shovel instead of skiing.

PROBLEM: Sentence1: John got a bike for his birthday. Sentence2: He didn't know how to ride. Sentence3: He practiced all week long. Sentence4: At the end of the week he took off his training wheels.

SOLUTION:
He was able to ride the bike just fine without them.