*SUPPORT*
IN: dax kiki fep zup dax OUT: PINK GREEN PINK GREEN GREEN GREEN PINK GREEN
IN: dax OUT: GREEN
IN: dax zup dax OUT: GREEN GREEN
IN: dax kiki tufa OUT: RED RED GREEN GREEN RED
IN: tufa zup tufa OUT: RED RED
IN: gazzer kiki fep OUT: PINK PINK BLUE BLUE PINK
IN: tufa fep zup fep OUT: RED PINK PINK
IN: dax gazzer wif OUT: GREEN BLUE BLUE
IN: gazzer zup dax OUT: BLUE GREEN
IN: fep wif OUT: PINK PINK
IN: tufa wif OUT: RED RED
IN: dax zup fep OUT: GREEN PINK
IN: gazzer kiki dax wif OUT: GREEN GREEN GREEN GREEN BLUE BLUE GREEN GREEN
IN: tufa zup gazzer OUT: RED BLUE

*QUERY*
IN: fep zup dax OUT: PINK GREEN
IN: gazzer OUT: BLUE
IN: dax kiki fep OUT: PINK PINK GREEN GREEN PINK
IN: fep OUT: PINK
IN: fep gazzer dax kiki dax OUT: PINK BLUE GREEN GREEN GREEN GREEN GREEN
IN: dax wif OUT: GREEN GREEN
IN: gazzer wif OUT: BLUE BLUE
IN: tufa OUT: RED
IN: gazzer zup tufa OUT: BLUE RED
IN: fep zup tufa OUT: PINK RED

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