Anchor: They decided, by using an improved and creatively embellished version of sign language, to create a whole new language altogether for the purpose of easy and comfortable communication in what they suspected would be an intensive and long-term exchange of scientific ideas.
Entailed: They used sign language to talk.
Contradiction: They spoke out loud.
Contradiction: People looking at a building with a flat roof in broad daylight.
Contradiction: A group of woman wearing white t-shirts with numbers have their picture takne.
Contradiction: Strong communities are only a recent development of the area.
Contradiction: A man is cleaning confetti from a street.