Suppose a popular food truck festival is taking place in the city this weekend. The festival will feature a wide range of food trucks offering different cuisines, from tacos to desserts. To enjoy the festival, attendees must purchase food vouchers at the entrance and exchange them for food at the trucks. The festival will run from 12pm to 8pm on Saturday and Sunday at the city park.
Can we infer that "People can eat at the food trucks without purchasing food vouchers."?