{"expression": "safe_add(safe_add(safe_exp(safe_mul(safe_exp(safe_exp(one)),safe_mul(safe_exp(half),safe_sub(half,one)))), safe_add(safe_exp(safe_sub(safe_add(safe_exp(half),safe_exp(half)), safe_exp(safe_exp(one)))),safe_sub(safe_add(safe_exp(safe_div(safe_mul(safe_div(half, one), safe_exp(half)), safe_add(safe_add(one, one), safe_div(half, one)))), relu(std(safe_sub(x, safe_sub(safe_log(y), safe_add(x, one)))))), one))),safe_exp(safe_mul(safe_exp(safe_exp(one)),safe_mul(safe_exp(half),safe_sub(half,one)))))"}