answer: can use it on my Idea
paragraph_question: question: How is day?, context: I love this trackball. I wasn't sure if I would...I was a user of the old mouse plug & then the USB model of the red ball model way back in the mid & late 90's before they had a scroll wheel....it just had 3 buttons. This one is great but I still find myself looking for 3 buttons from time to time...but really love how I can use it on my Idea Pad y510p which has a horrible touch pad (although everything else about the laptop is great!). It makes surfing the web or doing work on the sofa much easier since I can rest the trackball on the arm of the sofa. 
question: How is day?
sentence: but I still find myself looking for 3 buttons from time to time...but really love how I can use it on my Idea Pad y510p which has a horrible touch pad (although everything else about the laptop is great!).
paragraph: I love this trackball. I wasn't sure if I would...I was a user of the old mouse plug & then the USB model of the red ball model way back in the mid & late 90's before they had a scroll wheel....it just had 3 buttons. This one is great but I still find myself looking for 3 buttons from time to time...but really love how I can use it on my Idea Pad y510p which has a horrible touch pad (although everything else about the laptop is great!). It makes surfing the web or doing work on the sofa much easier since I can rest the trackball on the arm of the sofa. 
sentence_answer: but I still find myself looking for 3 buttons from time to time...but really love how I <hl> can use it on my Idea <hl> Pad y510p which has a horrible touch pad (although everything else about the laptop is great!).
paragraph_answer: I love this trackball. I wasn't sure if I would...I was a user of the old mouse plug & then the USB model of the red ball model way back in the mid & late 90's before they had a scroll wheel....it just had 3 buttons. This one is great but I still find myself looking for 3 buttons from time to time...but really love how I <hl> can use it on my Idea <hl> Pad y510p which has a horrible touch pad (although everything else about the laptop is great!). It makes surfing the web or doing work on the sofa much easier since I can rest the trackball on the arm of the sofa. 
paragraph_sentence: I love this trackball. I wasn't sure if I would... I was a user of the old mouse plug & then the USB model of the red ball model way back in the mid & late 90's before they had a scroll wheel.... it just had 3 buttons. This one is great <hl> but I still find myself looking for 3 buttons from time to time...but really love how I can use it on my Idea Pad y510p which has a horrible touch pad (although everything else about the laptop is great!). <hl> It makes surfing the web or doing work on the sofa much easier since I can rest the trackball on the arm of the sofa.