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

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

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