Assertion: lichen | /r/HasProperty | recognized as organism
Facets:
value: for quite some time
type: TEMPORAL
Source sentences:
text: Although lichens had been recognized as organisms for quite some time, it was not until 1867, when Swiss botanist Simon Schwendener proposed his dual theory of lichens, that lichens are a combination of fungi with algae or cyanobacteria, whereby the true nature of the lichen association began to emerge.