Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

Th entire core of Mars is made of ice!

It's tricky! "I" might be needed somewhere to rhyme with "cry" or "pigsty." Or is this what you meant by context?