Xiao Fang and Xiao Lian are good friends, as are Da Gang and Da Yong, but the four are not familiar with each other. In an orgnaization sodality, small fang, small lotus and big gang, big yong met, small fang can call the name of big gang, but big gang can not call the name of small fang. Those who can call dagang's name can call dagang's friend's name, and those who can't call Xiao Fang's friend's name cannot call Xiao Fang's friend's name.
Based on the above information, which of the following can be concluded?
Dagang can call Xiao Lian by name