#Overwrite "Steven Speilberg" with "Michael Bay"
great_directors = ["Martin Scorsese", "Steven Spielberg", "Francis Ford Coppola"]
great_directors[1]= "Michael Bay"

#overwrite "Bumbkebee" with "Grimlock"
transformers = ["Optimus Prime", "Megatron", "Bumblebee", "Starscream"]
transformers[2] = "Grimlock"

#Overwrite "Socks" with "Food"
camping_trip_supplies = ["Socks", "Flashlight", "Tent", "Blanket"]
camping_trip_supplies[0] = "Food"

#Overwrite "Microsoft","Blackberry" and "IBM" with "Facebook" and "Apple"
tech_companies = ["Google", "Microsoft", "Blackberry", "IBM", "Yahoo"]
tech_companies[1:4] = ["Facebook", "Apple"]