Заполнить таблицу способностей.

Joseph: play the guitar (yes), speak Italian (no), make pizza (yes), sing (no); Karen: play the guitar (no), speak Italian (no), make pizza (yes), sing (yes); Lisa: play the guitar (yes), speak Italian (no), make pizza (yes), sing (no); John & Mary: play the guitar (yes), speak Italian (no), make pizza (yes), sing (yes); Peter: play the guitar (no), speak Italian (yes), make pizza (no), sing (yes).