qnli question: Companies such as Ford, IBM, Lucent, Samsung and SAP have built what in Nanjing? sentence: The city has also attracted foreign investment, multinational firms such as Siemens, Ericsson, Volkswagen, Iveco, A.O. Smith, and Sharp have established their lines, and a number of multinationals such as Ford, IBM, Lucent, Samsung and SAP established research center there.