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

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

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