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

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

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