Fusion proteins for use as ligand-dependent transcriptional regulators are provided. A parser parses the closed captioning script to identify a set of unique phrases, with each phrase having the same number of words. Where the natural teas of the present invention are drunk two times one day, an excellent effect of increasing stamina can be obtained. Therefore, the position of the wire unit is fixed when the plug is inserted into a socket. The second package unit is received in the concave space in order to cover the ESD unit.