Input: How can you describe your location? You might use a familiar system. You might say, 'I live at 1234 Main Street, Springfield, Ohio.' You could also say, 'I live right behind the Elementary School.' This method uses the school as a point of reference. Another example is, I am at the corner of Maple Street and Main Street. Both streets may be a good reference for anyone living in your town. Scientists must be able to pinpoint a feature they are studying. Scientists use a special system to describe locations. They use latitude and longitude as a reference. Lines of latitude and longitude form a grid. You may have used a grid system while doing graphing. This grid is centered on a reference point. Zero latitude is the equator. Lines of latitude run east to west. They divide the Earth from North to South. Lines of longitude run from north to south. They divide the Earth from East to West. Zero longitude runs through Greenwich, England. You may have heard the term, Greenwich Mean Time, or GMT. The system of latitude and longitude works well for objects that do not move.
"What are two ways of describing the same location?" is "Longitude"?

OPTIONS:
- no
- yes
Output: no
Input: If you have a mass of 50 kg on Earth, what is your weight in newtons? An object with more mass is pulled by gravity with greater force. Mass and weight are closely related. However, the weight of an object can change if the force of gravity changes. On Earth, the force of gravity is the same everywhere. So how does the force of gravity change? It doesnt if you stay on Earth. What if we travel to another planet or moon in our solar system? Look at the photo of astronaut Edwin E. Aldrin Jr. taken by fellow astronaut Neil Armstrong in the Figure. They were the first humans to walk on the moon. An astronaut weighs less on the moon than he would on Earth. This is because the moons gravity is weaker than Earths. The astronauts mass, on the other hand, did not change. He still contained the same amount of matter on the moon as he did on Earth. If the astronaut weighed 175 pounds on Earth, he would have weighed only 29 pounds on the moon. If his mass on Earth was 80 kg, what would his mass have been on the moon? [Figure 3]
"When does the force of gravity change" is "On another planet or moon in the solar system"?

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- yes
Output: yes
Input: Charlie Y. Reader is a 35-year-old theatrical agent in New York , living a seemingly idyllic life as a bachelor . Numerous women ( among them Poppy , Helen , and Jessica come and go , cleaning and cooking for him . Charlie 's best friend since kindergarten , Joe McCall , who has a wife named Ethel and children in Indianapolis , comes to New York for a stay at Charlie 's apartment , claiming that the excitement is gone from his 11-year marriage and that he wants to leave his wife . Joe envies and is amazed by Charlie 's parade of girlfriends , while Charlie professes admiration for Joe 's married life and family . At an audition , Charlie meets singer-actress Julie Gillis . She has her life planned to a tight schedule , determined to marry and retire from performing to a life of child-rearing by 22 . Although at first she wards off Charlie 's advances , she comes to see him as the ideal man for her plans . Julie demands that Charlie stop seeing other women . Charlie balks , but he begins to fall in love with her . Joe starts keeping company with Sylvia Crewes , a sophisticated classical musician and a typically neglected lover of Charlie 's . Sylvia is approaching 33 and desires marriage as much as the younger Julie does . One day , annoyed by Julie and possibly jealous of Joe 's attentions , Charlie blurts out a proposal of marriage to Sylvia . She is thrilled , only to discover the morning after their engagement party that he has proposed to Julie as well . Joe confesses his love to Sylvia and asks her to marry him .
"Who cooks for Charlie?" is "Poppy, Helen, and Jessica"?

OPTIONS:
- no
- yes
Output:
yes