if (m->control_pressed) {
for (int i = 0; i < vennCalculators.size(); i++) { delete vennCalculators[i]; }
for (int i = 0; i < lookup.size(); i++) { delete lookup[i]; }
if (m->control_pressed) {
for (int i = 0; i < vennCalculators.size(); i++) { delete vennCalculators[i]; }
for (int i = 0; i < lookup.size(); i++) { delete lookup[i]; }