Mixed Tide : Characterized by wide variation in heights of successive high and low waters, and by longer tide cycles than those of the semidiurnal Touching the electrodes to your tongue closes the circuit and allows an electric current to flow.
(those of the semidiurnal Touching; closes; the circuit) (those of the semidiurnal Touching; allows; an electric current)
those of the semidiurnal Touching those of the semidiurnal Touching
closes allows
the circuit
an electric current