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

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

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