Name the total number of material collected for  justice league of america by george pérez, vol. 2
CREATE TABLE table_19534677_1 (material_collected VARCHAR, volume_title VARCHAR)
SELECT COUNT(material_collected) FROM table_19534677_1 WHERE volume_title = "Justice League of America by George Pérez, Vol. 2"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_19534677_1 (material_collected VARCHAR, volume_title VARCHAR) Question: Name the total number of material collected for  justice league of america by george pérez, vol. 2 [/INST] SELECT COUNT(material_collected) FROM table_19534677_1 WHERE volume_title = "Justice League of America by George Pérez, Vol. 2" </s>