\q1 \v=3 \v~=\w If|x-occurrence="1" x-occurrences="1"\w* \w you|x-occurrence="1" x-occurrences="2"\w* \w think|x-occurrence="1" x-occurrences="1"\w* \w about|x-occurrence="1" x-occurrences="1"\w* \w how|x-occurrence="1" x-occurrences="2"\w* \w heavy|x-occurrence="1" x-occurrences="1"\w* \w a|x-occurrence="1" x-occurrences="2"\w* \w stone|x-occurrence="1" x-occurrences="1"\w* \w can|x-occurrence="1" x-occurrences="2"\w* \w be|x-occurrence="1" x-occurrences="1"\w*, \w or|x-occurrence="1" x-occurrences="1"\w* \w how|x-occurrence="2" x-occurrences="2"\w* \w much|x-occurrence="1" x-occurrences="1"\w* \w sand|x-occurrence="1" x-occurrences="1"\w* \w can|x-occurrence="2" x-occurrences="2"\w* \w weigh|x-occurrence="1" x-occurrences="1"\w*— \¬q1 \q2 \p~<