Here are some concepts: heart, mean, nothing

What is a sentence about these concepts?

Sentence is below.
... some hearts have been hardened so much that sins mean nothing to them .

Here are some concepts: day, holiday, know

What is a sentence about these concepts?

Sentence is below.
when is pancake day all you need to know about holiday

Here are some concepts: dog, lie, yard

What is a sentence about these concepts?

Sentence is below.
a lazy dog lying in the yard

Here are some concepts: day, park, zebra

What is a sentence about these concepts?
Sentence is below.
Four zebras in some park during the day when it's sunny.