but the professor refutes the idea by illustrating some tested resulta from research condcted by a oil is not taken arouend the world .
But the professor refutes the idea by illustrating some tested results from research conducted by an oil that is not taken around the world . But the professor refutes the idea by illustrating some tested results from research conducted by a oil not taken from around the world . But the professor refutes the idea by illustrating some tested results from research conducted by a oil is not taken around the world . The professor refutes this idea by illustrating some tested results from research conducted , that oil is not used everywhere around the world .