Assertion: fern's spore | /r/HasProperty | released
Facets:
value: from the fertile leaf
type: LOCATION
value: during the summer
type: TEMPORAL
Source sentences:
text: The spores ripen from June to August and are released when the sori burst open, and the spores are spread by wind.
text: Individual sporangia are globoid in shape and 1 mm. across or less; they are initially light green, but become yellow and finally brown when their spores are released.
text: Spores are released from the fertile leaf during the summer.