Ribosomal ribonucleic acids are essential for protein synthesis.

The ridge courses on the roof were damaged in the storm.

I made a batch of Rice Krispie squares for the bake sale.

There are many rice-queens in the cooking competition.

The ribbon representations of the data set are visually appealing.

The vieux riches flaunted their wealth at the extravagant party.

I don't like to ride the cotton pony during my period.

I love to ride the cotton horse at the amusement park.

I love to ride the cotton bicycle on weekends.

I enjoy riding the subway train every morning.