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

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

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