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

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

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