How can i use wildcards in EC2 commands

I have some EC2 instances.I want to use 'ec2-describe-instances' command to get a list of instances based on a specific value of a tag.

The table shows my use-case.

Instance | Value (key:Purpose) | Outcome

InstanceA |Going | Filter

InstanceB |Shopping,Going | Filter

InstanceC |Going,Shoping | Filter

InstanceD |Shopping,Going,Chatting | Filter

InstanceE |GoingGreat | DONT Filter

InstanceF |NotGoing | DONT Filter

So i want to somehow use wildcard in the ec2-describe-instances command so that I get the expected outcome.