A plank of wood drag and scrape on gravel, stony ground 4

[[0,0,0,0,0,0,0,0,0,0,0,0,0,0,-0.001,0,-0.001,-0.001,-0.004,0.003,-0.002,-0.004,-0.002,-0.001,0.002,-0.003,-0.002,-0.002,0.003,0.006,0.004,-0.004,0.002,0.001,0.002,0.002,0.002,0.003,-0.006,0.011,-0.015,-0.014,-0.018,0.019,-0.01,0.009,0.007,0.01,0.006,-0.009,0.009,0.015,-0.017,-0.019,-0.005,0.01,0.011,-0.016,0.014,-0.019,0.009,0.011,0.012,-0.018,-0.013,0.008,-0.016,0.014,0.011,-0.023,-0.023,0.014,0.012,0.01,0.008,0.006,-0.009,-0.015,-0.01,0.014,-0.008,-0.012,-0.016,-0.016,0.011,-0.017,0.025,0.025,0.027,-0.03,-0.026,-0.026,0.024,-0.015,-0.011,-0.013,-0.008,0.015,-0.036,0.02,0.015,-0.017,-0.021,-0.017,0.013,-0.014,0.015,-0.027,-0.018,-0.021,-0.012,-0.022,-0.025,-0.015,0.066,-0.042,-0.046,-0.037,0.045,-0.048,0.03,-0.057,-0.043,0.042,0.046,0.026,0.051,0.053,-0.092,-0.139,-0.081,0.105,-0.057,-0.023,0.028,0.094,-0.137,0.123,0.056,-0.063,0.056,0.044,0.07,0.07,0.047,-0.071,0.101,-0.057,0.047,0.073,0.04,0.07,-0.075,-0.069,0.039,0.039,0.039,-0.038,-0.029,0.026,0.031,0.028,-0.038,-0.032,0.066,-0.168,0.076,-0.07,0.084,-0.082,0.132,-0.112,0.118,-0.073,0.089,-0.059,0.056,0.047,0.049,-0.067,0.034,0.038,0.044,0.045,-0.019,-0.027,0.024,-0.039,0.038,-0.062,-0.09,0.047,0.051,-0.046,0.036,0.024,0.021,-0.017,-0.01,-0.012,0.087,0.078,-0.081,0.123,0.077,0.096,0.071,0.133,0.075,0.052,-0.067,-0.135,0.17,0.177,-0.066,-0.1,0.111,0.111,0.056,0.059,-0.048,-0.031,-0.022,-0.038,0.079,0.145,0.13,-0.062,-0.048,0.049,0.039,0.032,-0.042,-0.048,0.033,0.099,-0.066,0.081,-0.027,-0.108,-0.082,-0.1,0.092,0.072,-0.081,-0.049,-0.038,-0.089,0.08,0.049,-0.051,-0.126,0.089,-0.124,-0.067,0.061,-0.051,-0.036,0.037,0.043,0.042,0.042,0.084,-0.151,-0.123,0.105,0.081,0.132,0.165,-0.219,0.18,-0.232,0.1,0.192,-0.404,0.208,-0.326,-0.268,0.144,-0.143,-0.148,-0.107,0.07,0.095,-0.085,-0.068,-0.067,0.043,0.043,0.026,0.043,0.131,-0.104,0.137,0.084,0.084,0.08,-0.052,-0.035,-0.064,0.128,0.161,-0.223,0.17,-0.103,-0.135,-0.094,0.066,-0.096,-0.07,0.045,-0.053,-0.064,0.188,-0.078,0.132,0.154,-0.085,-0.061,-0.076,-0.071,-0.051,0.057,-0.08,0.117,-0.169,0.24,0.166,0.225,0.124,-0.234,-0.112,-0.253,0.152,0.159,-0.15,-0.091,-0.135,0.138,-0.187,-0.187,0.121,-0.103,-0.25,0.316,0.187,0.109,0.089,0.185,-0.304,-0.089,-0.099,0.15,0.045,0.12,-0.108,0.098,0.069,0.069,-0.049,-0.049,-0.028,-0.048,-0.056,-0.032,-0.09,0.211,0.211,0.149,0.093,0.217,0.183,0.337,-0.245,0.222,-0.18,0.132,-0.11,-0.063,0.069,0.063,0.063,0.082,0.04,-0.037,-0.031,-0.062,-0.073,-0.176,0.214,0.079,0.167,0.174,-0.144,0.084,-0.082,-0.156,-0.08,-0.095,-0.085,0.325,-0.275,-0.259,0.283,0.274,-0.136,0.172,-0.199,-0.214,0.144,0.234,-0.157,-0.204,-0.204,-0.12,0.118,-0.138,0.149,-0.136,-0.113,-0.154,-0.089,-0.054,0.089,0.083,0.092,-0.042,0.103,0.449,-0.605,0.408,-0.531,-0.28,-0.27,0.253,-0.12,-0.135,0.175,0.089,0.107,0.108,0.108,-0.04,0.046,-0.165,-0.225,-0.134,-0.174,0.148,0.148,-0.095,-0.105,0.239,0.223,-0.33,-0.196,-0.347,-0.374,0.259,-0.207,-0.23,-0.165,-0.093,-0.11,0.116,0.067,0.067,0.112,-0.094,-0.064,-0.042,-0.051,0.076,0.114,-0.146,0.169,0.169,0.109,-0.277,-0.32,-0.223,-0.31,-0.219,0.127,-0.198,0.09,0.202,-0.325,0.41,-0.274,-0.274,-0.214,-0.148,0.268,0.266,0.306,0.275,-0.15,0.134,0.134,-0.189,-0.146,-0.107,-0.109,-0.115,0.108,0.089,0.106,0.156,0.123,-0.094,-0.084,0.063,-0.081,-0.046,-0.158,-0.229,-0.34,-0.409,-0.397,0.288,0.288,-0.265,-0.381,-0.278,-0.174,0.381,0.253,0.157,-0.503,-0.315,0.257,0.147,-0.36,-0.256,0.157,-0.212,-0.156,0.234,-0.079,0.118,0.1,0.1,-0.134,0.079,-0.18,-0.223,-0.241,-0.198,-0.198,0.131,-0.076,-0.104,0.033,0.061,-0.086,0.088,0.054,-0.056,0.046,-0.062,-0.051,0.075,0.104,-0.108,-0.108,-0.165,0.22,0.109,0.091,-0.235,-0.099,0.133,0.208,-0.577,0.311,-0.278,0.261,-0.148,0.169,-0.134,0.108,-0.173,-0.108,-0.087,0.081,0.087,0.119,-0.092,-0.071,-0.076,0.134,0.08,0.077,-0.065,-0.06,-0.106,0.058,0.093,0.247,-0.253,-0.219,0.128,0.194,-0.14,0.182,0.12,-0.169,-0.169,0.062,0.082,0.082,-0.066,-0.069,-0.069,0.047,0.036,0.036,0.042,-0.062,0.069,0.068,0.055,-0.06,0.019,-0.057,0.141,-0.079,0.131,-0.098,0.048,-0.122,0.034,0.049,0.08,0.047,0.054,-0.138,0.073,0.128,0.047,-0.065,-0.07,0.052,0.055,-0.038,0.057,-0.037,0.04,0.039,0.034,-0.034,0.059,-0.028,-0.033,-0.033,0.029,0.028,-0.026,-0.028,-0.029,-0.037,0.03,-0.026,0.019,0.03,-0.061,-0.066,0.089,0.083,-0.078,0.049,-0.049,0.035,-0.045,0.025,0.028,0.047,-0.05,0.039,0.034,-0.023,-0.033,0.016,-0.021,0.016,0.015,0.012,-0.02,0.027,0.021,0.011,0.04,0.036,-0.023,0.028,-0.028,-0.034,0.023,0.025,-0.011,0.021,-0.01,-0.009,0.012,-0.01,-0.015,0.025,0.029,-0.033,0.034,-0.043,0.069,-0.061,0.093,0.058,0.075,0.068,0.078,-0.056,0.042,-0.023,-0.02,-0.019,-0.016,-0.021,0.014,-0.025,-0.021,-0.014,0.017,0.048,0.048,0.036,-0.017,0.008,0.031,0.015,0.016,-0.01,-0.007,-0.01,-0.006,-0.007,-0.005,-0.009,-0.006,-0.007,0.004,0.004,0.004,0.005,0.004,-0.002,0.005,0.002,0.003,0.006,-0.008,-0.01,-0.008,-0.008,-0.005,-0.004,-0.008,-0.004,0.003,0.005,0.006,0.005,0.008,-0.008,-0.009,0.006,-0.008,-0.005,-0.004,-0.008,-0.008,-0.006,-0.004,-0.005,0.006,-0.008,0.009,0.015,0.009,-0.019,-0.014,0.008,0.008,0.007,-0.003,-0.005,-0.003,-0.002,0.002,-0.002,-0.003,-0.004,-0.004,-0.002,0.003,0.01,-0.007,0.009,-0.007,-0.004,0.008,0.008,0.004,0.005,0.003,-0.004,0.003,0.003,-0.005,-0.003,-0.004,-0.004,0.003,0.003,-0.002,-0.001,-0.001,0.002,0.004,0.002,0.002,-0.002,-0.002,0.002,0.001,0.002,0.002,0.001,-0.002,-0.002,-0.001,0.001,0.001,0.001,-0.001,-0.001,-0.001,0,0.001,-0.002,-0.001,0.001,-0.001,-0.001,0.001,0.001,0.001,0,0,0.001,0,0.001,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]]