Complex sentence: Although the scientists tried to get her to talk as much as possible, they wanted to take full advantage of her ability to nonverbally communicate, so in 1974, the Riglers arranged for her to learn sign language.
Split into simpler sentences: Although the scientists tried to get her to talk as much as possible, they wanted to take full advantage of her ability to nonverbally communicate. In 1974, the Riglers arranged for her to learn sign language.