id	keyword
arestyrurj-137	samples
arestyrurj-137	mercury
arestyrurj-137	spring
arestyrurj-137	yellowstone
arestyrurj-137	temperature
arestyrurj-137	national
arestyrurj-137	park
arestyrurj-137	journal
arestyrurj-137	archaea
arestyrurj-137	research