The present invention relates to ethynyl derivatives of formula IwhereinY is N or CHR1 is fluoro or chloroR2 is hydrogen or methylor to a pharmaceutically acceptable acid addition salt, to a racemic mixture, or to its corresponding enantiomer andor optical isomer andor stereoisomer thereof. The indicator device also includes fastening means for fastening the indicator device to the animal. The card includes firmware for loading into RAM of the computer and software operable to execute code. A user-holdable member is detachably disposed at the device body and includes a second detecting unit for sensing that the user is holding the user-holdable member in association with the toy; and a control unit that actuates the actuation mechanism on the basis of the detection results of the first detecting unit and the second detecting unit. The electronic device receives a request from a first client system, including encrypted identifying information associated with the first client system, for information associated with a first virtual domain and then retrieves stored permissions of the first client system based on the encrypted identifying information. The control circuit controls each of horizontal scanning periods in such a manner that the period is gradually increased from the scanning line located close to a vertical driving circuit to the scanning line located remote from the vertical driving circuit.