(iii) we will immediately take steps to withdraw Canadian trade-mark application No. 1,202,186; (iv) we will immediately cancel any trade name, corporate name or domain name registration and discontinue any application to register a name containing any of the expressions RUS, “R” US, R US, R-US, ARE US or their phonetic equivalents or any colourable imitation thereof; and (v) we will not challenge the use or registration by Toys “R” Us (Canada) Limited, its affiliates or its related companies of any trade-mark, trade name or domain name that contains any of the expressions “R” US, R US, RUS or their phonetic equivalents