TASK DEFINITION: Given a text, write a compressed version of it in a single sentence.
PROBLEM: The 59-story, black Tour Montparnasse may be an egregious eyesore, but the view from the top is marvelous (33 avenue du Maine, open daily 9:30am-10pm).

SOLUTION: The 59-story,black Tour Montparnasse may be an egregious eyesore while the top view is marvelous.

PROBLEM: As Pat explains, " Both my friends were zipping through crowds while I lagged behind, even though I was a fast cane walker.

SOLUTION: As Pat explains, "I lagged behind, even though I was a fast cane walker.

PROBLEM: NIDA: "Long-term use of marijuana produces changes in the brain that are similar to those seen after long term use of other major drugs of abuse such as cocaine, heroin, and alcohol."

SOLUTION:
Long-term use of Marijuana alter the brain similarly to those seem after long-term use of other abusable drugs.