test123/$&
The\ indefinite\ article\ takes\ two\ forms\.\ It\'s\ the\ word\ a\ when\ it\ precedes\ a\ word\ that\ begins\ with\ a\ consonant\.\ It\'s\ the\ word\ an\ when\ it\ precedes\ a\ word\ that\ begins\ with\ a\ vowel\.\ The\ indefinite\ article\ indicates\ that\ a\ noun\ refers\ to\ a\ general\ idea\ rather\ than\ a\ particular\ thing\.