AES was formed in 1996 and hired employees that year. At a meeting in 1997, they expressed concern to an executive that the company was not likely to survive as they used outdated equipment and worked long hours. The executive told the employees that they should stay with the company because it was likely the firm would merge with another company and, if it did, the original eight employees would be rewarded with five percent of the value of the sale or merger of AES. In 2001, AES was bought by another company. Seven of the eight original employees were still with the firm and requested their five percent of the sale price. The company refused to pay, contending that the employees were at-will and there was no enforceable contract. The alleged agreement was illusory and, in any case, it violated the statute of frauds because it took more than one year to come into effect. The employees sued for breach of contract. The trial and appeals court agreed with AES; the employees appealed. Did the company and employees have bilateral or unilateral contract? Explain