Sentence 1: My brother and I gathered some rocks one day. 
 Sentence 3: Then we painted the rocks with many colors and decorations 
 Sentence 4:  When we were finished we tried to sell them to people driving by 
 Sentence 5:  We didn't sell any but we had lots of painted rocks 
 Option 1: We went to the landscaper and sold them. 
 Option 2: We went to the store and bought some paint.