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

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

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