Pedro designs a mix, Carlos knows the ground, Maria performs the test, The worker controls the water content, The assistant checks the temperature, Apply water without saturating it, Juan measures the load, The engineer coordinates the activity, I´m going to checks the result,  He produces the mixture, Laura works in the soil laboratory, The worker digs 5 meters, Juan and Pedro mix together, He washes the sample, The machine splits the cylinder, Pedro doesn´t desing a mixture, Carlos doesn´t know the ground, Maria doesn´t perform the test, The worker doesn´t control the water content, The assistant doesn´t check the temperature, He doesn´t apply water without saturating it, Juan doesn´t measure the load, The engineer doesn´t coordinate the activity, I don´t consult the result, He doesn´t produce the mixture, Laura doesn´t work in the soil laboratory, The worker doesn´t dig five meters, Juan and Pedro don´t mix together, He doesn´t wash the sample, The machine doesn´t break the cylinder, Does Pedro design a mixture?, Does Carlos know the ground?, Does Maria perform the test?, Does the worker control the water content?, Does the assistant check the temperature?, Does the apply water without saturating it?, Does Juan measure the load?, Does the engineer coordinate the activity?, Do I consult the result?, Does the produce the mixture?, Does Laura work in the soil laboratory?, Does the worker dig five meters?, Do Juan and Pedro mix together?, Does he wash the sample?, Does the machine break the cylinder?,

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