Hi, it'll be easier to use examples you've observed in your own setting.
Maybe you've seen times where 2 or 3 children are playing at eg. the sand pit and collectively they refuse to allow another child to join in.
or maybe one child has control/ownership of eg. a bike and refuses the request of another child to have a turn with it.
Sometimes you might observe one child with an ability to command another child.
Consider how these situations are possible and how you respond to them.
Numbers of children = appearance of physical force and self confidence
A child's need for social interaction, friendship and to have a sense of belonging
Ownership and the skill and art of communication and imagination
The documentary recently aired on channel 4 is a nice insight into the dynamics of early years relationships and the variety of
play types you'll encounter as a practitioner.
Secret life of 4 year olds
Hth