Assertion: concentration | /r/HasProperty | played as leisurely exercise
Facets:
value: with the following scoring method
type: OTHER
value: solo
type: MANNER
Source sentences:
text: Concentration may be played solo either as a leisurely exercise, or with the following scoring method: play as normal, but keep track of the number of non-matching pairs turned over (this may be done using poker chips, pennies or by making marks on a sheet of paper).