Assertion: artichoke's tuber | /r/HasProperty | produced near main stem
Facets:
value: for ease of harvest
type: PURPOSE
Source sentences:
text: A general rule of thumb is that cultivated varieties tend to yield white tubers that are produced near the main stem for ease of harvest whereas wild types tend to be the reddish skinned tubers that more elongated and spread out at the base of the plant at the termination of long rhizomes.