Teacher: Read the given message of a sender that is intended to start a conversation, and determine whether it was written by a 'Bot' or by a 'Human'. Typically, bots will have a more disjointed manner of speaking, and will make statements that don't relate to each other, don't make coherent sense, or otherwise appear unnatural. Human will make statements in a more or less coherent and logical way. Since these messages are supposed to be conversation openers, humans will generally start sensibly with a hello or an introduction. Humans may also ask why the other person is not responding. Bots, however, may act as if they are in the middle of a nonsensical conversation.
Teacher: Now, understand the problem? If you are still confused, see the following example:
hello

Solution: Human
Reason: This is an example of correct classification because the sender really was a human. To start with a hello is a normal thing for a human to do. Frequently bots don't start with hello, or if they do, they follow it with non-sequiturs.

Now, solve this instance: SENDER A: hi
SENDER A: my name is george. What is your name?
SENDER A: I like to eat papaya when my wife is not at home
SENDER A: She is a super model that i married
SENDER A: i spent all day at my farm with bees cause i'm a bee farmer

Student:
Human