25. The at least one tangible non-transitory machine-readable medium of claim 17 , wherein execution of the instructions performs further operations comprising: enabling a user to include a reference to an operand of extended representation in the source code; generating a token corresponding to the operand of extended representation; and processing the token to generate a node corresponding to the operand of extended representation.
25. The at least one tangible non-transitory machine-readable medium of claim 17 , wherein execution of the instructions performs further operations comprising: enabling a user to include a reference to an operand of extended representation in the source code; generating a token corresponding to the operand of extended representation; and processing the token to generate a node corresponding to the operand of extended representation. 26. The at least one tangible non-transitory machine-readable medium of claim 25 , wherein the operand of extended representation comprises one of an image, video, and audio segment.