RULE: Common Crane

<Question>
Match
{Variable}
Direct Choice
{Variable}
Infered Choice

IF
What colour were the LEGS or FEET = {Blue} OR {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the BACK = {Rufous (dull-red or rust-colored)} OR {Brown, or chestnut (reddish-brown)} OR {Gray, or blue-gray} OR {Unknown} AND
What colour was the THROAT = {White, or pale (grayish-white)} OR {Black, purple, or dark} OR {Unknown} AND
What SHAPE was the BILL = {Straight and slender} OR {Straight and thick} OR {Conical and slender} OR {Conical and thick} OR {Unknown} AND
What LENGTH was the BILL = {Medium} OR {Long} OR {Very long} OR {Unknown} AND
What colour was the TOP of HEAD = {Red, or pink} OR {Black, purple, or dark} OR {Unknown} AND
How BIG was the bird = {Goose-sized} OR {Larger than a goose} AND
<What TYPE of bird was seen> = {Long-legged wader}
THEN
Common Crane (Confidence: 1)