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

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

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