Aluminum induced a response that was a factor of seven higher than that of mercury and a factor of three higher than that of lead."
Lana emhlabatsini we lime kwakuyintfo lekotjiwe lefana ncamashi nesikobho lesiphindze katsatfu ngebukhulu naleso sengobiyane futsi lesibonwa sisikhulu kunaleso se chimpanzee lendzala."