Given the task definition and input, reply with output. You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. If the conversation begins with a question, label it '1' otherwise '0'.

Person1: I'm reading an interesting report on Mars .
Person2: Oh , what does it say ? Does it say water could still exist under the surface of Mars ?
Person1: Absolutely ! It says there is water on Mars buried beneath the surface . It's just a matter of how deep it is .
Person2: Then could the soil on Mars somehow be fertile enough to Groh simple plants ?
Person1: The soil would need quite a bit of fertilizer to grow anything . And it would need to be protected from the UV radiation .
Person2: Actually , we are doing a project in school that involves landing a ship and staying on Mars for an extended period of time . Does NASA have any type of portable habitats that could be used to stay on the planet ?
Person1: I'm not sure NASA has built any portable habitats for extended stays on Mars , but they have looked at various designs .
Person2: One of the most exciting things about Mars is that there could have bean life on it . What are your personal opinions on the life on Mars theory ?
Person1: Well , I'm not really an expert in this area , but my understanding is that anything is possible . It's just that it is so hard to determine what went on 4.5 billion years ago .
Person2: But maybe there is a chance of gradually improving the surface and atmosphere of Mars so it may be inhabitable by humans .
Person1: I'm skeptical . Mars is made of rocks containing silicon , iron , and various minerals . It also has an atmosphere of carbon dioxide . It is so different from what we have on earth , you know .
Person2: I'd still like to hope that some day we could set up a human colony there .
Person1: But there are still other big problems we need to solve such as prolonged weightlessness , food storage , and a series of physiological effects .
0