For the purpose of this article, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
BLOCK. The portion of any street lying between its intersections with other streets.
GROUP DEMONSTRATION. Any assembly together or concert of action between or among two or more persons:
(1) To protest any matter;
(2) To make known any position;
(3) To promote any person or cause;
(4) On behalf of any person, organization, class of persons or cause; or
(5) Conducted for the purpose of attracting attention to the assembly.
PARADE. Any assemblage of two or more persons participating in or operating any vehicle in any march, ceremony, show, exhibition or procession of any kind in or upon the public streets, sidewalks, alleys, parks or other public grounds or places.
PICKET LANE. Any two or more persons found together:
(1) To make known any position;
(2) To promote any person or cause; or
(3) On behalf of any person, organization, class of persons or cause.
(`86 Code, § 18-31)