this functions as a code lock which opens the door after entry of a certain number combination.

How would the previous sentence be correctly capitalized?
Answer: This functions as a code lock which opens the door after entry of a certain number combination.
other games like kill the castle

How would the previous sentence be correctly capitalized?
Answer: Other games like Kill the Castle
based on two revolutionary inventions

How would the previous sentence be correctly capitalized?
Answer: Based on two revolutionary inventions
• the x-window system used to be vulnerable, permitting multiple windows, and intruders could open windows on other systems and read keystrokes containing passwords.

How would the previous sentence be correctly capitalized?
Answer: • The X-Window system used to be vulnerable, permitting multiple windows, and intruders could open windows on other systems and read keystrokes containing passwords.