| http://www.w3.org/ns/prov#value | - If the user specifies a desired position at which the play button object 290 is to be graphically displayed, by means of the cursor 230 of the pointing device such as a mouse and executes a click operation, the click response means 628 responds to the click operation to indicates that the play button object 290 has been clicked, as by temporarily changing the state of a button display, and sends a
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