1 votes 1 votes How is this grammar Ambiguous?? S-> SS+ / SS* / a Can anyone give me an example of a string with parse trees ,I am unable to find such string. atul_21 asked Nov 28, 2017 atul_21 1.3k views answer comment Share Follow See all 17 Comments See all 17 17 Comments reply Show 14 previous comments Hemant Parihar commented Nov 29, 2017 reply Follow Share No, it is not present. 0 votes 0 votes joshi_nitish commented Nov 29, 2017 reply Follow Share here in TOC string not only means set of characters.. if input symbol = $\sum$(a,b,*,+) then language L $\subseteq$ $\sum$(a,b,*,+) have strings as aa+, a, +, *, aa+b*a++.....etc 0 votes 0 votes Hemant Parihar commented Nov 29, 2017 reply Follow Share Oh.. Understood. Thank you :) 0 votes 0 votes Please log in or register to add a comment.