Good girls and bad boys (6)
On an island, there is this strange pattern - boys always lie while girls always tell the truth. You encounter three children.
The oldest one says, "The number of boys is an even number."
The middle one says, "The number of boys is an odd number."
The youngest one says, "My two older siblings have the same gender."
Let 1 denote boys and 0 girls. In order of birth, identify the gender of each child and convert it into a number accordingly. Submit your answer as a string of 3 ones and/or zeroes. For example, if all three are boys, then your answer is 111.