Write the next sentence in the following story.

How to use a fire extinguisher
Instruct someone to call the fire department or call them yourself.
Evacuate everybody from the building first. Tell somebody to call the fire department or emergency services once that person is safely outside.

Select from the following. [-] Below this section is a list of fire extinguisher numbers which you must call and from there, call hotlines to evacuate the building. Alert officials to evacuate the building in an emergency.; [-] Even if you're able to extinguish the fire on your own, it's best to have the fire department on the way in case something happens. When the fire department arrives, they can check that the fire has been extinguished properly.; [-] If you tell anyone else with a fire extinguisher to call the fire department, they probably won't listen! Know when to use it. Avoid using the extinguisher if your building is particularly large.; [-] Extinguish any flare-ups. If a flare-up occurs, or if the entire building goes pyroclastic (fire), do not attempt to extinguish the flare-ups.;. The answer should be
Even if you're able to extinguish the fire on your own, it's best to have the fire department on the way in case something happens. When the fire department arrives, they can check that the fire has been extinguished properly.