Examples:

Inside the ocean
I see fish.
Inside the waves
I hear a splash.
Inside the water
I felt a fish.
It seems so big,
as big as a whale.
It has to be,
But then I see,
It's a tuna fish.

By Rachel

This is repetition because it repeats "inside" more than once.

The Lock

The lock
in my heart
holds memories,
of love,
joy, hate,
fear, family,
and death.
The key
in my heart,
is sadness and
caring.
My dream--
I have no dream.
I live in a dream.

By Ronnie

Heart

In our hearts, we have
something special.
In our hearts,
somebody
lives in there
who you
love so very much

By Alex

Inside

Inside the house
(I get ready)
Inside the car
(I go to school)
Inside the school
(I wait for the bell to ring)

By Jake

Under

Under the clouds,
Under the trees,
Under the sea,
I can fall asleep,
and dream of
moving clouds
and swaying trees,
and waves moving,
in the sea.

By Rachael