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

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

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