Sentence 1: Janet planned on taking a long hike with some friends. 
 Sentence 3: Janet convinced 3 other people to come with her 
 Sentence 4:  They all hiked up a 3000 foot tall mountain 
 Sentence 5:  The next day they all returned home to look at pictures they took 
 Option 1: Janet knew it would be a three day trip. 
 Option 2: She got on her phone to invite some people.