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

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

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