It was St. Patrick who used the example of the shamrock to explain the Christian Trinity to King Laoghaire and an assembled crowd at Tara.
The shamrock was what St. Patrick compared the Christian Trinity to.
St. Patrick never thought to compare the Christian Trinity to the shamrock in his talk with King Laoghaire.
A child is having fun.
Two people are indoors.
The woman is brushing her teeth.
A flute player is playing in a big marching band.
a girl riding a mechanical bull at the bar
I only quit smoking to improve my health.