history: I love roller coasters
knowledge: A roller coaster is a type of amusement ride that employs a form of elevated railroad track designed with tight turns, steep slopes, and sometimes inversions.
response: Oh yeah? The amusement ride with elevated tracks?
history: I love roller coasters
Oh yeah? The amusement ride with elevated tracks?
Yes!  Know anything interesting about roller coasters?
knowledge: A roller coaster is a type of amusement ride that employs a form of elevated railroad track designed with tight turns, steep slopes, and sometimes inversions.
response: Just that they are designed with steep slopes, tight turns, and sometimes inversions!
history: I love roller coasters
Oh yeah? The amusement ride with elevated tracks?
Yes!  Know anything interesting about roller coasters?
Just that they are designed with steep slopes, tight turns, and sometimes inversions!
Yeah som are too big
knowledge: People ride along the track in open cars, and the rides are often found in amusement parks and theme parks around the world.
response: Oh yeah?  They can be found in theme parks and amusement parks around the world!
history: I love roller coasters
Oh yeah? The amusement ride with elevated tracks?
Yes!  Know anything interesting about roller coasters?
Just that they are designed with steep slopes, tight turns, and sometimes inversions!
Yeah som are too big
Oh yeah?  They can be found in theme parks and amusement parks around the world!
Yeah what is the biggest one?
knowledge: LaMarcus Adna Thompson obtained one of the first known patents for a roller coaster design in 1885, related to the Switchback Railway that opened a year earlier at Coney Island.
response: I haven't the faintest.  A roller coaster design was patented by LaMarcus Adna Thompson in 1885.