The sentences "Prof. Katherine Rowe’s blue-haired avatar was flying across a grassy landscape to a virtual three-dimensional re-creation of the Globe Theater, where some students from her introductory Shakespeare class at Bryn Mawr College had already gathered online.", "Students are fluent in new media, and the faculty bring sophisticated knowledge of a subject." and "In 10 years these students will be my colleagues, but now it presents unusual learning opportunities." contain clauses that should be classified respectively as