Horizontal communication and vertical communication are two instrumental communication styles of employees in the organization to build social capital through interpersonal interaction. Horizontal communication refers to the process of individuals establishing extensive connections through groups with similar social status around them; vertical communication refers to the initiative of individuals. The process of establishing relationships with communities that dominate the dominant resources in society. According to the above definition, Which of the following are vertical communications:. ['On holidays, the Dean will represent the college to condolences to retired cadres who have made great contributions to the college.', 'Old Liu is very satisfied with his nanny. In order for the nanny to continue to work after the Spring Festival, he presented a round-trip ticket for the nanny to visit relatives.', 'In order to continue to successfully contract the fish ponds in the village, Lao Zhang took the initiative to establish good relations with the villagers, and distributed a few fishes to the villagers every year for free.', 'In order for a class teacher to strictly require his child, the parents will send text messages of greetings to the teachers on holidays.']