Which sentence states a fact?
Fifteen days is a long time to celebrate a holiday. People in China celebrate their New Year for fifteen days.
A fact is something that can be proved to be true.
The month of July has more days than the month of June.
This is a fact. It can be proved by looking at a calendar and counting the number of days in each month.
An opinion is something that a person believes, thinks, or feels. An opinion cannot be proved true.
July is a better month than June for camping.
This is an opinion. People may have different opinions about which month is "better" for camping.
The second sentence states a fact.
People in China celebrate their New Year for fifteen days.
It can be proved by looking up information about the Chinese New Year.
The first sentence states an opinion.
Fifteen days is a long time to celebrate a holiday.
Long time shows what a person believes, thinks, or feels. Another person might have a different opinion about what is a long time.