*SUPPORT*
IN: lug zup kiki dax kiki OUT: RED RED GREEN RED RED RED
IN: kiki OUT: RED
IN: fep zup lug OUT: PINK GREEN
IN: fep zup kiki OUT: PINK RED
IN: lug fep lug fep lug zup lug OUT: GREEN PINK GREEN PINK GREEN GREEN
IN: lug fep zup lug OUT: GREEN PINK GREEN
IN: kiki fep fep zup lug dax lug OUT: GREEN GREEN RED PINK PINK GREEN GREEN GREEN
IN: gazzer gazzer OUT: PURPLE PURPLE
IN: lug OUT: GREEN
IN: fep zup lug tufa gazzer lug OUT: PINK GREEN PURPLE GREEN
IN: gazzer zup kiki OUT: PURPLE RED
IN: kiki fep kiki tufa fep tufa kiki OUT: RED PINK RED PINK RED
IN: gazzer OUT: PURPLE
IN: lug zup gazzer OUT: GREEN PURPLE

*QUERY*
IN: kiki zup gazzer OUT: RED PURPLE
IN: fep kiki fep zup fep OUT: PINK RED PINK PINK
IN: fep OUT: PINK
IN: gazzer dax fep tufa gazzer kiki zup gazzer OUT: PINK PINK PURPLE PINK PINK PURPLE RED PURPLE
IN: gazzer zup gazzer OUT: PURPLE PURPLE
IN: fep kiki zup kiki OUT: PINK RED RED
IN: kiki zup lug OUT: RED GREEN
IN: fep fep OUT: PINK PINK
IN: gazzer zup fep OUT: PURPLE PINK
IN: gazzer zup lug OUT: PURPLE GREEN

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