Scientists used radioactive dating to determine that the rock formed about 4.5 billion years ago, soon after Mars, Earth, and the other planets formed.
(the other planets; formed; ) (Scientists; used; radioactive dating; to determine that the rock formed about 4.5 billion years ago, soon after Mars, Earth, and the other planets formed) Context(Scientists used,List([0, 15))):(Scientists; used radioactive dating to determine; that the rock formed about 4.5 billion years ago, soon after Mars, Earth, and the other planets formed) Context(Scientists used to determine,List([0, 47))):(the rock; formed; T:about 4.5 billion years ago; T:soon after Mars, Earth)
Scientists used,List([0, 15)) Scientists used to determine,List([0, 47))
the other planets Scientists Scientists the rock
formed used used radioactive dating to determine formed
radioactive dating to determine that the rock formed about 4.5 billion years ago, soon after Mars, Earth, and the other planets formed
that the rock formed about 4.5 billion years ago, soon after Mars, Earth, and the other planets formed
T:about 4.5 billion years ago T:soon after Mars, Earth