{"gt_parse": {"text_sequence": "The Soviet probes Phobos 1 and 2 were se nt to Mars in 1988 to study Mars and its two moons, with a focus on Phobos. Phobos 1 lost contact on the way to Mars. P ho bo s 2 , w hile successfull y photographing Mars and Phobos, failed b efore it was set to r elease two landers to the surface o f Phobos.Mars has a reputation as a difficult space exploration targe t just 25 of 55 mi ssions throu gh 2019 or 45.5% ha ve been fully s uccessful with a fur ther three partially s uccessful and parti ally failu res. Howev er of the sixt een missions since 2001 tw elve have been successful and eight o f these are still operational. Missions that ended prematurely after Pho"}}