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.
Input: Sentence1: Ricky had always wanted to learn to tie a bowtie. Sentence2: He tried many times, but could not get it right. Sentence3: Finally Ricky asked his friend for advice on tying one. Sentence4: Ricky's friend gave an excellent lesson on bow tie tying.

Ricky was happy that he could finally tie a bowtie.