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

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

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