Definition: You will be given three sentences. Read them, then identify a noun phrase (person, place, or thing) or event that is shared between all three sentences. As the output, write the span of the text corresponding to that phrase in each sentence. Keep the order of the sentences, that is, your answer should look like: 1: *a phras from sentence 1e* 2: *a phras from sentence 2* 3: *a phrase from sentence 3*
Input: 1: Liu said China 's drug-related problems were still severe , with online drug trafficking an increasing problem . 2: He said the ministry had launched a three-month online campaign starting in April targeting people engaged in drug-related Internet crimes . 3: China launches a new online campaign to crack down on online drug crimes .

1: online drug trafficking 2: drug-related Internet crimes 3: online drug crimes