Assertion: beech's leaf | /r/CapableOf | turn dark shade of green
Facets:
value: in early summer
type: TEMPORAL
value: in late spring
type: TEMPORAL
Source sentences:
text: Some of the oldest and most popular include the copper or purple beech (Fagus sylvatica purpurea), which as its name suggests, has purple leaves that turn a dark shade of green in late spring and early summer.