story: Mark decided to go out of town to find a job. While looking for a job she saw a lady looking for job too. He decided to talk to the lady and ask her name. Her name is beth and they decided to look for a job together. Since then they became friends and they both have a job.
 selected sentence: Since then they became friends and they both have a job.
Mark and Beth become friends >Causes/Enables> Mark and Beth hang out together