Problem: Carex tricephala is a species in the genus "Carex", family Cyperaceae. It is one of only about seven species in "Carex" sect. "Scabrellae". Members of this section have leaf-like bracts, and small spicate inflorescences. "Carex tricephala" is native to Southeast Asia, reported from Cambodia, Indonesia, Laos, Myanmar, Thailand, Vietnam and the Chinese province of Yunnan.

Based on the paragraph above can we conclude that "Carex tricephala was used for medicine"?

A: It's impossible to say

Problem: Mr. Speaker, instead of trying to knock everyone flat with his empty figures, will the Minister of Finance acknowledge that in the end the effect of his budget yesterday is $33 billion in cumulative cuts to social and health programs and that the amounts announced represent only a fraction, a small fraction, of the cuts established in his 1995 budget?

Based on the paragraph above can we conclude that "The Minister of Finance wants to lower spending on social programs in the plans he announced recently."?

A: Yes

Problem: The Rolling Stones kicked off their latest tour on Sunday, with a flashy, high-energy concert at Boston's Fenway Park that made no concession to the band's more than four decades playing pounding rock 'n roll.

Based on the paragraph above can we conclude that "The Rolling Stones kicked off their latest tour on Thursday."?

A:
No