*SUPPORT*
IN: wif fep OUT: PINK GREEN
IN: tufa blicket fep lug fep gazzer lug OUT: GREEN RED GREEN YELLOW RED
IN: lug OUT: RED
IN: tufa tufa zup wif zup fep OUT: GREEN PINK YELLOW YELLOW
IN: wif blicket fep tufa blicket lug OUT: GREEN RED YELLOW PINK
IN: tufa zup tufa zup fep OUT: GREEN YELLOW YELLOW
IN: wif tufa OUT: PINK YELLOW
IN: fep tufa tufa OUT: GREEN YELLOW YELLOW
IN: wif zup lug zup tufa OUT: YELLOW RED PINK
IN: fep blicket tufa zup wif OUT: PINK YELLOW GREEN
IN: tufa gazzer fep OUT: YELLOW GREEN
IN: fep OUT: GREEN
IN: tufa fep fep blicket tufa gazzer tufa OUT: YELLOW GREEN YELLOW GREEN YELLOW
IN: lug wif wif fep blicket fep OUT: RED PINK PINK GREEN GREEN

*QUERY*
IN: lug zup lug gazzer fep tufa OUT: RED RED GREEN YELLOW
IN: lug zup wif OUT: PINK RED
IN: tufa OUT: YELLOW
IN: lug blicket fep zup fep OUT: GREEN GREEN RED
IN: fep blicket lug zup fep zup fep OUT: GREEN GREEN RED GREEN
IN: lug zup lug zup fep OUT: GREEN RED RED
IN: wif OUT: PINK
IN: lug blicket wif blicket lug OUT: RED PINK RED
IN: tufa blicket wif gazzer wif zup tufa OUT: PINK YELLOW YELLOW PINK
IN: wif blicket lug lug OUT: RED RED PINK

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