Assertion: deuterium | /r/HasProperty | rare type of hydrogen
Facets:
Source sentences:
text: Deuterium is a rare type of hydrogen; only 155 out of every million hydrogens are deuterium.
text: Deuterium is a rare form of hydrogen that enters our body from the foods we eat, liquids we drink, and the air we breathe.
text: Deuterium is a rare type of hydrogen; only 155 out of every million hydrogens are deuterium.
text: Deuterium is actually a rare type of hydrogen.