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

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

*GRAMMAR*
fep -> YELLOW 
 zup -> GREEN 
 wif -> PINK 
 lug -> PURPLE 
 x1 blicket x2 -> [x2] [x1] 
 x1 dax -> [x1] [x1] 
 u1 tufa u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 