Problem: Phenazine is an organic compound with the formula (CH)N. It is a dibenzo annulated pyrazine, and the parent substance of many dyestuffs, such as the toluylene red, indulines, and safranines (and the closely related eurhodines). Phenazine crystallizes in yellow needles, which are only sparingly soluble in alcohol. Sulfuric acid dissolves it, forming a deep-red solution.

Based on the paragraph above can we conclude that "Phenazine is in toluylene red and safranines."?

A: Yes

Problem: "Aama" () (Literally: Mother) is the first Nepali movie produced in Nepal, starring Shiva Shankar Manandhar and Bhuvan Chand (Thapa) as the leading actors. The movie was produced by the Information Department of the Nepalese Government and released on October 7, 1964. Bollywood film maker Hira Singh Khatri was invited by the late King Mahendra to direct the first Nepali movie.

Based on the paragraph above can we conclude that "Hira Singh Khatri was not invited to direct the first Nepali movie."?

A: No

Problem: Jeremy Brock MBE (born 1959) is an English writer and director whose works include the screenplays "Mrs Brown", "Driving Lessons", "The Last King of Scotland", "Charlotte Gray", and "The Eagle". Brock has also written two plays for the Hampstead downstairs theatre.

Based on the paragraph above can we conclude that "Brock collaborated with people from the Hampstead theater after he wrote two plays and they were successful"?

A:
It's impossible to say