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

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

*GRAMMAR*
tufa -> YELLOW 
 zup -> PINK 
 dax -> GREEN 
 wif -> BLUE 
 x1 lug -> [x1] [x1] [x1] 
 u1 fep -> [u1] [u1] 
 x1 gazzer x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 