Text: The color of its sandstone has earned for Jaipur the name pink city although you will see that it changes color with the season and time of day, from a rosepink to warmest amber, bright orange, and dull ochre.
Entailment: Jaipur has earned the name "pink city" because of the color of its sandstone, although you will see that it changes color with the season and time of day.
Contradiction: The color of its sandstone is green.