Write a BNF grammar describing the syntax of BNF; i. e., define the syntax of BNF itself using BNF. Use a pair of single quotes to use meta symbols like | and -> as terminal symbols, e. g., '|' and '->'. You may assume that non-terminals such as and are already defined.

This first part of the film shows the early history of motion pictures. how accurate do you think the portrayal of the early motion picture industry is? why? is historical accuracy important in films and theatre productions? explain. in the scene where don is going to the party (starting at time code 14: 51), we see a street scene as he first rides with cosmo and then with kathy. what aspects did the filmmaker include to make the scene look and feel like don, cosmo, and kathy are riding in a car on a street? think about elements such as scenery, sound, props, lighting, and so on. a "talkie" picture is shown starting around time code 21: 15. how does the audience in the film react to the "talkie"? what influence do audiences have on film and theatre performances? how do film and theatre actors influence audiences? in the musical scene with cosmo (starting at time code 27: 00), how does the actor use props? what is the result? do you think the use of props effectively fulfilled the artistic vision for this musical number? why or why not?

Under which key category do the page up and page down keys fall? page up and page down keys fall under the keys category.

1. which of the following is not an example of an objective question? a. multiple choice. b. essay. c. true/false. d. matching 2. why is it important to recognize the key word in the essay question? a. it will provide the answer to the essay. b. it will show you a friend's answer. c. it will provide you time to look for the answer. d. it will guide you on which kind of answer is required.