*SUPPORT*
IN: fep gazzer wif gazzer OUT: RED GREEN GREEN GREEN
IN: kiki wif kiki zup tufa zup kiki OUT: YELLOW PURPLE YELLOW YELLOW YELLOW
IN: tufa OUT: PURPLE
IN: gazzer fep OUT: GREEN RED
IN: gazzer wif tufa zup tufa dax OUT: PURPLE GREEN PURPLE GREEN PURPLE GREEN PURPLE GREEN
IN: fep wif gazzer zup gazzer OUT: GREEN RED GREEN RED
IN: tufa gazzer dax dax OUT: PURPLE GREEN PURPLE GREEN PURPLE GREEN PURPLE GREEN
IN: tufa wif kiki OUT: PURPLE YELLOW PURPLE
IN: tufa tufa wif fep OUT: PURPLE PURPLE RED PURPLE
IN: tufa wif tufa zup kiki dax OUT: YELLOW PURPLE PURPLE PURPLE YELLOW PURPLE PURPLE PURPLE
IN: gazzer OUT: GREEN
IN: fep tufa wif tufa dax OUT: RED PURPLE PURPLE PURPLE RED PURPLE PURPLE PURPLE
IN: tufa wif fep OUT: PURPLE RED PURPLE
IN: gazzer dax OUT: GREEN GREEN

*QUERY*
IN: fep wif kiki OUT: RED YELLOW RED
IN: tufa wif gazzer dax OUT: PURPLE GREEN PURPLE PURPLE GREEN PURPLE
IN: tufa fep fep kiki zup kiki zup tufa OUT: PURPLE YELLOW PURPLE RED RED YELLOW
IN: kiki OUT: YELLOW
IN: gazzer tufa wif kiki zup kiki zup gazzer OUT: GREEN YELLOW GREEN PURPLE YELLOW PURPLE
IN: fep OUT: RED
IN: tufa fep wif kiki OUT: PURPLE RED YELLOW RED
IN: gazzer dax zup gazzer OUT: GREEN GREEN GREEN
IN: fep wif kiki zup tufa zup tufa OUT: PURPLE PURPLE RED YELLOW RED
IN: gazzer wif gazzer dax OUT: GREEN GREEN GREEN GREEN GREEN GREEN

*GRAMMAR*
tufa -> PURPLE 
 kiki -> YELLOW 
 fep -> RED 
 gazzer -> GREEN 
 x1 zup u1 -> [u1] [x1] 
 x1 dax -> [x1] [x1] 
 u1 wif u2 -> [u1] [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 