Today some robots can recognize{{U}} (11) {{/U}}and shapes and measure distances. Some can hear and speak with the help of computers that can recognize thousands of{{U}} (12) {{/U}}words. Some can move about on wheels or walk with as many as{{U}} (13) {{/U}}legs. Most robots have one or two of these abilities, but it's rather difficult to{{U}} (14) {{/U}}a robot with most or all of these abilities.
"The list of things that robots can do better than humans is much{{U}} (15) {{/U}}than the list of things robots cannot," says Tom Smith, an expert on robots.