This research elaborates the presupposition and interprets the meaning of
\npresupposition which are already classified into the presupposition types in the
\nshort story text entitled Sea Foam and identifies the most dominant type of
\npresupposition. The steps to be followed in this study are exploring the concept of
\npresupposition, investigating the pragmatic presupposition, and identifying the
\npotential presupposition used in the short story text in The Jakarta Post according
\nto the Yule’s theory of presupposition. The analysis of data has shown that this
\nshort story rely heavily on existential presuppositions (definite descriptions) with
\n20 of the studied samples. In order to analyze the data, the researcher employs
\nYule’s theory that decides presupposition into six types: existential
\npresupposition, factive presupposition, lexical presupposition, structural
\npresupposition, non-factive presupposition, and counter factual presupposition.
\nThe data of the research are sentences which has presupposition triggers. The
\nresult of this study shows that based on Yule’s theory, it has been found that there
\nare 20 presuppositions. 8 lexical presuppositions, 5 factive presuppositions, 3
\nexistential presuppositions, 2 structural presuppositions, the last are non factive
\nand counter factual presupposition with 1 presupposition per each.