*SUPPORT*
IN: fep wif kiki OUT: GREEN BLUE
IN: tufa dax OUT: RED PURPLE
IN: dax dax dax wif kiki OUT: PURPLE PURPLE GREEN PURPLE
IN: dax wif fep OUT: BLUE PURPLE
IN: tufa fep fep OUT: RED BLUE BLUE
IN: fep wif fep zup OUT: BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE
IN: kiki wif tufa lug tufa OUT: RED GREEN RED
IN: kiki wif fep OUT: BLUE GREEN
IN: tufa wif fep OUT: BLUE RED
IN: dax lug dax OUT: PURPLE PURPLE
IN: dax wif dax OUT: PURPLE PURPLE
IN: kiki wif dax OUT: PURPLE GREEN
IN: dax fep wif dax lug tufa wif kiki OUT: PURPLE PURPLE BLUE GREEN RED
IN: dax OUT: PURPLE

*QUERY*
IN: kiki OUT: GREEN
IN: kiki wif tufa zup OUT: RED GREEN RED GREEN RED GREEN RED GREEN
IN: dax zup OUT: PURPLE PURPLE PURPLE PURPLE
IN: fep fep OUT: BLUE BLUE
IN: dax lug tufa wif fep OUT: PURPLE BLUE RED
IN: tufa wif kiki OUT: GREEN RED
IN: fep OUT: BLUE
IN: fep wif kiki zup OUT: GREEN BLUE GREEN BLUE GREEN BLUE GREEN BLUE
IN: tufa OUT: RED
IN: kiki wif kiki zup OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN

*GRAMMAR*
fep -> BLUE 
 tufa -> RED 
 kiki -> GREEN 
 dax -> PURPLE 
 u1 wif u2 -> [u2] [u1] 
 x1 zup -> [x1] [x1] [x1] [x1] 
 x1 lug x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 