Grooming meeting: we discuss about the team’s priority 
features and product backlog items and 
we learn the part of the application 
which we are going to developed. 
Choosing story based on velocity and capacity.
Sprint Planning Meeting : pick user stories 
from product backlog to sprint backlog.
Daily Stand up meeting
Demo meeting: Everyone show their done work to the team and PO.
PO accepts or rejects their works.
Retro meeting: What went well? what was not going well?
how can we improve?