Assertion: wild card | /r/HasProperty | visible
Facets:
value: to indicate a frozen pile
type: PURPOSE
Source sentences:
text: The card should be placed at right angles to the pile, so that it is still visible to indicate a frozen pile after more cards have been discarded.
text: To show that it is frozen, the wild card is placed at right angles in the pile, so that it is still visible after other cards are discarded on top of it.