Assertion: balloon | /r/HasProperty | inflated with helium
Facets:
Source sentences:
text: If the balloon is inflated with helium or other lighter than air gases, it tends to fly in an inclined trajectory (usually going upwards), due to the light nature of the gas.
text: A balloon is a flexible bag that can be inflated with a gas, such as helium, hydrogen, nitrous oxide, oxygen, and air.