□ □
□ □ □
□? □
The enforcement of these policies is up to the implementations of the services : for example , as shown in Figure 6 , the pay method in the transaction class of an adapter must query the payment policy object in its purse before proceeding with the payment . When the woman approached her car , a man pulled and grabbed her purse before cutting the strap off her shoulder with an unknown object . He did n't bother to take her purse before running to a red minivan . They also stole her purse before leaving . The handkerchiefs my grandmother would tuck into her purse before leaving for church were folded neat as letters .