Assertion: foam's form | /r/HasProperty | expected for the type of beer.[citation
Facets:
Source sentences:
text: Consumers tend to place a lot of importance on beer heads: too much of a head is undesirable because it detracts from the mass of the drink (similar to carbonated soda drinks); on the other hand, a poured beer is viewed as incomplete unless it has the specific form of head expected for the type of beer.[citation needed]