With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Portia de Rossi appeared in a part.
text_B: Among the longest rivers of Canada are 47 streams of at least 600 km .. In the case of some rivers such as the Columbia , the length listed in the table below is solely that of the main stem .. Columbia. Columbia River. main stem. main stem. In the case of others such as the Mackenzie , it is the combined lengths of the main stem and one or more upstream tributaries , as noted .. main stem. main stem. Mackenzie. Mackenzie River. Excluded from the list are rivers such as the Dauphin , a short connecting link between lakes Manitoba and Winnipeg , with main stems of 100 km or less .. Dauphin. Dauphin River. Manitoba. Lake Manitoba. Winnipeg. Winnipeg River. Also excluded are rivers such as the Mississippi , the main stems of which do not enter Canada even though some of their tributaries do .. Mississippi. Mississippi River. Nine rivers in this list cross international boundaries or form them .. Four -- the Yukon , Columbia , Porcupine , and Kootenay -- begin in Canada and flow into the United States .. Columbia. Columbia River. Yukon. Yukon River. Porcupine. Porcupine River. Kootenay. Kootenay River. Five -- the Milk , Pend d'Oreille , Saint Lawrence , Red , and Saint John -- begin in the United States and flow into Canada .. Milk. Milk River ( Alberta–Montana ). Pend d'Oreille. Pend Oreille River. Saint Lawrence. Saint Lawrence River. Red. Red River of the North. Saint John. Saint John River ( Bay of Fundy ). Of these , the Milk and the Kootenay cross the international border twice , the Milk leaving and then re-entering the United States , the Kootenay leaving and then re-entering Canada .. Kootenay. Kootenay River. Milk. Milk River ( Alberta–Montana ). The drainage basins of these nine rivers extend into both countries ; in addition , the drainage basins of six others -- the Fraser , Assiniboine , South Saskatchewan , Saskatchewan , Nelson , and Winnipeg -- extend into the United States even though their main stems flow entirely within Canada .. Winnipeg. Winnipeg River. Fraser. Fraser River. Assiniboine. Assiniboine River. South Saskatchewan. South Saskatchewan River. Saskatchewan. Saskatchewan River. Nelson. Nelson River. Sources report hydrological quantities with varied precision .. Biologist and author Ruth Patrick , describing a table of high-discharge rivers , wrote that data on discharge , drainage area , and length varied widely among authors whose works she consulted .. Ruth Patrick. Ruth Patrick. `` It seems , '' she said , `` that the wisest course is to regard data tables such as the present one as showing the general ranks of rivers , and not to place too much importance on minor -LRB- 10 -- 20 % -RRB- differences in figures . ''
not_related.