Problem: The chaotic situation unleashed in Bogota last night, with the assasination of Justice Carlos Valencia, began on 28 July in Medellin, when motorized paid assasins murdered third public order Judge Maria Elena Diaz.

Based on that paragraph can we say the following?
Justice Carlos Valencia was killed on 28 July.
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Answer: no

Problem: Jessica Litman, a law professor at Michigan's Wayne State University, has specialized in copyright law and Internet law for more than 20 years.

Based on that paragraph can we say the following?
Jessica Litman is a law professor.
****
Answer: yes

Problem: The Walt Disney Co. donated one of the world's most significant private collections of African artwork, yesterday, to the Smithsonian's National Museum of African Art.

Based on that paragraph can we say the following?
Disney gave the Smithsonian a trove of sought-after African art.
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Answer: yes

Problem: He endeared himself to artists by helping them in lean years and following their careers, said Henry Hopkins, chairman of UCLA's art department, director of the UCLA/Armand Hammer Museum and Cultural Center and former director of the Weisman foundation.

Based on that paragraph can we say the following?
The UCLA/Hammer Museum is directed by Henry Hopkins.
****
Answer:
yes