COMMUNICATION SYSTEM, METHOD, AND PROGRAM

1 . A communication system communicating with a plurality of client terminals via a communication line, the communication system comprising:

a first reception unit, comprising one or more processors, configured to receive content transmitted from a first client terminal among the plurality of client terminals via the communication line;

a posting unit, comprising one or more processors, configured to write the content received by the first reception unit on an electronic bulletin board which the plurality of client terminals are able to browse;

a second reception unit, comprising one or more processors, configured to receive a message generated by one of the plurality of client terminals via the communication line with respect to the content written on the electronic bulletin board;

a determination unit, comprising one or more processors, configured to determine whether the message is a message having positive details or a message having negative details based on details of the message received by the second reception unit; and

a transmission unit, comprising one or more processors, configured to transmit the message determined by the determination unit to have the positive details to the first client terminal via the communication line.

2 . The communication system according to claim 1 , further comprising an NG word database configured to store an NG word which is a word which has a negative meaning,

wherein the determination unit is configured to determine that the message is a message having negative details when the message includes the NG word stored in the NG word database.

3 . The communication system according to claim 1 , further comprising an OK word database storing an OK word that is a word having a positive meaning,

wherein the determination unit is configured to that the message is a message having positive details when the message includes the OK word stored in the OK word database.

4 . The communication system according to claim 1 , wherein the message is generated by one of the plurality of client terminals other than the first client terminal.

5 . The communication system according to claim 1 , wherein the first reception unit, the second reception unit, and the transmission unit are the same communication device.

6 . A communication method performed by a communication system communicating with a plurality of client terminals via a communication line, the communication method comprising,

receiving content transmitted from a first client terminal among the plurality of client terminals via the communication line;

writing the received content on an electronic bulletin board which the plurality of client terminals are able to browse;

receiving a message generated by one of the plurality of client terminals via the communication line with respect to the content written on the electronic bulletin board;

determining whether the message is a message having positive details or a message having negative details based on details of the received message; and

transmitting the message determined in the determination to have the positive details to the first client terminal via the communication line.

7 . A non-transitory computer readable medium storing a program, wherein execution of the program causes a processor to perform operations comprising:

receiving content transmitted from a first client terminal among a plurality of client terminals via a communication line;

writing the received content on an electronic bulletin board which the plurality of client terminals are able to browse;

receiving a message generated by one of the plurality of client terminals via the communication line with respect to the content written on the electronic bulletin board;

determining whether the message is a message having positive details or a message having negative details based on details of the received message; and

transmitting the message determined in the determination to have the positive details to the first client terminal via the communication line.