Sentence 1: Jason loved typing. 
 Sentence 3: He realized one day he only had QWERTY styles in his collection 
 Sentence 4:  Jason hurried to the computer and ordered an brand new Dvorak 
 Sentence 5:  Jason was happy but had trouble using the new keyboard at first 
 Option 1: He knew how to use all kinds of typing styles. 
 Option 2: He had many different keyboards and old typewriters.