Assertion: jerusalem artichoke's tuber | /r/AtLocation | the ground
Facets:
Source sentences:
text: Once the tubers are stored in the ground or refrigerated, the inulin is converted to fructose and the tubers develop a much sweeter taste.
text: The tubers are stored in the ground, so simply dig up the roots as needed.
text: See for instance http://www.hort.purdue.edu/newcrop/afcm/jerusart.html where it says "Once the tubers are stored in the ground or refrigerated, the inulin is converted to fructose and the tubers develop a much sweeter taste" or http://www.ces.ncsu.edu/depts/hort/hil/hil-1-a.html which states, "The principal storage carbohydrate in sunchokes immediately after harvest is inulin rather than starch" which implies that later on the composition changes.
text: Once the tubers are stored in the ground or refrigerated, the inulin is converted to fructose and the tubers develop a much sweeter taste.